A.1 Default messages for IMS Registration

34.229-13GPPInternet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP)Part 1: Protocol conformance specificationRelease 16TSUser Equipment (UE) conformance specification

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

A.1.1 REGISTER

Header/param	Cond	Value/remark	Rel	Reference
Request-Line				RFC 3261 [15]
Method		REGISTER
Request-URI		SIP URI formed from home domain name as stored in EF_DOMAIN (when using ISIM) or SIP URI formed from home domain name derived from the IMSI (when no ISIM available on the UICC)
	A14,A15	SIP URI formed from home domain name as preconfigured in the UE
SIP-Version		SIP/2.0
Route		not present		RFC 3261 [15]
Via				RFC 3261 [15]
sent-protocol		SIP/2.0/UDP (when using UDP) or SIP/2.0/TCP (when using TCP)
sent-by	A1,A3, A14,A15	IP address or FQDN, port (optional) and not checked
	A2	IP address or FQDN and, when using UDP, protected server port of the UE
response-port	A1,A3	rport (when using UDP)		RFC 3581 [96]
via-branch		value starting with ‘z9hG4bK’
From				RFC 3261 [15]
addr-spec	A1	any IMPU within the set of IMPUs on ISIM (when using ISIM; NOTE 3) or public user identity derived from IMSI (when no ISIM available on the UICC)
	A2,A15	same public user identity as in initial REGISTER
	A3 AND NOT A7	public user identity derived from IMSI
	A7	emergency public user identity (NOTE 4)
	A14	IMPU preconfigured in the UE
	A17	same public user identity as in initial REGISTER
tag		must be present, value not checked
To				RFC 3261 [15]
addr-spec	A1	any IMPU within the set of IMPUs on ISIM (when using ISIM; NOTE 3) or public user identity derived from IMSI (when no ISIM available on the UICC)
	A2,A15	same public user identity as in initial REGISTER
	A3 AND NOT A7	public user identity derived from IMSI
	A7	emergency public user identity (NOTE 4)
	A14	IMPU preconfigured in the UE
	A17	same public user identity as in initial REGISTER
tag		not present
Contact				RFC 3261 [15]
addr-spec	A1,A3, A14,A15	SIP URI with IP address or FQDN and indicating either an unprotected port selected by the UE or no port at all
	A2	SIP URI with IP address or FQDN and protected server port of UE
	A7	The SIP URI shall contain the sos URI parameter
feature-param	A4 AND A34	+g.3gpp.icsi-ref="(comma-separated list of tag-values)” with comma-separated list of tag-values containing at least tag-value urn%3Aurn-7%3A3gpp-service.ims.icsi.mmtel" (see NOTE 2,5)
	A6 AND NOT A7 AND A34	+g.3gpp.smsip
	A10 AND A34	video
	A28 AND (A29 OR A30 OR A32) AND A34	audio
	A11 AND NOT A7 AND A34	+g.3gpp.cs2ps-srvcc	Rel-11
	A12 AND NOT A7 AND A34	+g.3gpp.cs2ps-srvcc-alerting	Rel-11
	A13 AND NOT A16 AND A34	+g.3gpp.accesstype=”cellular2”	Rel-11	RFC 3840 [63]
	A13 AND A16 AND A34	+g.3gpp.accesstype=”wlan1”	Rel-11	RFC 3840 [63]
	A35 AND A34	+g.3gpp.ps-data-off=”inactive”	Rel-15
c-p-instance	A5	+sip.instance="<urn:gsma:imei: (gsma-specifier-defined-substring)>” where gsma-specifier-defined-substring shall be the IMEI code of the UE, coded as specified in RFC 7254 [122], without optional parameters	Rel-10	RFC 5627 [61] RFC 7254 [122]
expires		600000 (if present)
Expires		present if no expires parameter in Contact header		RFC 3261 [15]
delta-seconds		600000
Require	A1,A2			RFC 3261 [15] RFC 3329 [21]
option-tag		sec-agree
Proxy-Require	A1,A2			RFC 3261 [15] RFC 3329 [21]
option-tag		sec-agree
Supported				RFC 3261 [15] TS 24.229 [10]
option-tag	A5	gruu
		path
CSeq				RFC 3261 [15]
value	A1,A3 A14	must be present, value not checked
	A2,A15	must be incremented from the previous REGISTER
method		REGISTER
Call-ID				RFC 3261 [15]
callid		value not checked
Security-Client	A1,A2			RFC 3329 [21] RFC 4835 [124]
mechanism-name		ipsec-3gpp
algorithm		hmac-sha-1-96
protocol		esp (if present)
mode		trans (if present)
encrypt-algorithm		des-ede3-cbc or aes-cbc or null
spi-c		SPI number of the inbound SA at the protected client port
spi-s		SPI number of the inbound SA at the protected server port
port-c		protected client port
port-s		protected server port
Security-Client	A14,A15	not present
Security-Verify	A2			RFC 3329 [21]
sec-mechanism	A2	same value as Security-Server header sent by SS
Security-Verify	A1,A3 A14,A15	not present
Authorization	A1	Digest		RFC 2617 [16] RFC 3310 [17]
username	A1	private user identity as stored in EF_IMPI(when using ISIM) or private user identity derived from IMSI (when no ISIM available on the UICC)
realm	A1	home domain name as stored in EF_DOMAIN (when using ISIM) or home domain name derived from the IMSI (when no ISIM available on the UICC)
nonce	A1	set to an empty value
digest-uri	A1	SIP URI formed from home domain name as stored in EF_DOMAIN (when using ISIM) or formed from home domain name derived from the IMSI (when no ISIM available on the UICC)
response	A1	set to an empty value
Authorization	A14(o)	Header optional
username	A14	user identity as preconfigured in the UE
realm	A14	home domain name as preconfigured in the UE
nonce	A14	set to an empty value
digest-uri	A14	preconfigured in the UE
response	A14	set to an empty value
Authorization	A2,A15	Digest		RFC 2617 [16] RFC 3310 [17]
username	A2	private user identity as stored in EF_IMPI(when using ISIM) or private user identity derived from IMSI (when no ISIM available on the UICC)
	A15	user identity as preconfigured in the UE
realm	A2,A15	same value as received in the realm directive in the WWW Authenticate header sent by SS
nonce	A2,A15	same value as in WWW-Authenticate header sent by SS
opaque	A2,A15	same value as sent by the server in “401 Unauthorized for REGISTER”
digest-uri	A2	SIP URI formed from home domain name as stored in EF_DOMAIN (when using ISIM) or formed from home domain name derived from the IMSI (when no ISIM available on the UICC)
	A15	SIP URI formed from home domain name as preconfigured in the UE
qop-value	A2,A15	auth
cnonce-value	A2,A15	value assigned by UE affecting the response calculation
nonce-count	A2,A15	counter to indicate how many times UE has sent the same value of nonce within successive REGISTER requests, initial value shall be 1
	A17	value incremented by one for each re-registration request		RFC 2617 [16]
response	A2	response calculated by UE
	A15	response calculated by UE using password px_DigestPasswordForSIP
algorithm	A2	AKAv1-MD5
	A15	MD5
Max-Forwards				RFC 3261 [15]
value		non-zero value
P-Access-Network-Info	A2,A15, A14(o), A16(o)			RFC 7315 [132] RFC 7913 [154]
access-net-spec	A2 AND A31	access network information for E-UTRAN and, if applicable, the cell ID
	A14,A15	access network information for Fixed Broadband with access-type field matching “DLS” and a "dsl-location" parameter (value not checked)
	A16	access network information, containing any of “IEEE-802.11”, “IEEE-802.11a”, “IEEE-802.11b”, “IEEE-802.11g” or “IEEE-802-11n”, and i-wlan-node-id parameter containing a MAC address according to TS 24.229 [10], 7.2A.4.2. Value of MAC address not to be checked
	A2 AND A32	access network information for NR, containing access-class parameter with value "3GPP-NR" or access-type parameter with value "3GPP-NR-FDD" or "3GPP-NR-TDD", and also containing the cell ID	Rel-15
	A2 AND A33	access network information for UTRAN and, if applicable, the cell ID
Content-Length		header shall be present if UE uses TCP to send this message and if there is a message-body		RFC 3261 [15]
value		length of request body, if such is present

Condition	Explanation
A1	Initial unprotected REGISTER (IMS security, A.6a/2 3GPP TS 34.229-2 [5])
A2	Subsequent REGISTER sent over security associations (IMS security, A.6a/2 3GPP TS 34.229-2 [5])
A3	REGISTER for the case UE supports GIBA (A.6a/1 3GPP TS 34.229-2 [5])
A4	UE supports IMS Multimedia Telephony (MTSI) (A.3A/50 3GPP TS 34.229-2 [5])
A5	obtaining and using GRUUs in the Session Initiation Protocol (SIP) (A.4/53 3GPP TS 34.229-2 [5]). Mandatory from Rel-10 onwards.
A6	UE supports SM-over-IP receiver (A.3A/62 3GPP TS 34.229-2 [5])
A7	Initial unprotected or subsequent REGISTER for emergency registration
A8	Void
A10	UE supports video feature tag (A.12/32 3GPP TS 34.229-2 [5])
A11	UE supports CS to PS SRVCC (A.12/40 3GPP TS 34.229-2 [5])
A12	UE supports CS to PS SRVCC in alerting state (A.12/41 3GPP TS 34.229-2 [5])
A13	UE indicates g.3gpp.accesstype media feature tag in REGISTER (A.12/46 3GPP TS 34.229-2 [5])
A14	Initial REGISTER SIP Digest without TLS for Fixed Broadband Access (SIP Digest without TLS, A.6a/5 3GPP TS 34.229-2 [5])
A15	Subsequent REGISTER SIP Digest without TLS for Fixed Broadband Access (SIP Digest without TLS, A.6a/5 3GPP TS 34.229-2 [5])
A16	IMS registration over WLAN
A17	UE initiated IMS re-registration or de-registration (A.12/51 3GPP TS 34.229-2 [5])
A18-A27	Void
A28	UE supports audio media feature tag (A.12/56 3GPP TS 34.229-2 [5])
A29	UE uses E-UTRAN access and has received IMS voice over PS Session Supported Indication in the NAS ATTACH ACCEPT message as described in TS 24.301 [150], clauses 8.2.1 and 9.9.3.12A
A30	UE uses UTRAN/GERAN access and has received IMS voice over PS Session Supported Indication in the NAS ATTACH ACCEPT message as described in TS 24.008 [12], clauses 9.4.2 and 10.5.5.23
A31	UE uses E-UTRAN access (A.18/1 3GPP TS 34.229-2 [5])
A32	UE uses NR access (A.18/5 3GPP TS 34.229-2 [5])
A33	UE uses UTRAN access (A.18/2 3GPP TS 34.229-2 [5])
A34	Feature tags in Contact header to be checked. By default this condition is true.
A35	UE supports PS data off (A.12/62 3GPP TS 34.229-2 [5])

NOTE 1: All choices for applicable conditions are described for each header.

NOTE 2: The “=” may include optional linear white spaces according to the EQUAL definition in chapter 25.1, RFC 3261 [15].

NOTE 3: Public user identity shall be the same for ‘From’ and ‘To’.

NOTE 4: According to TS 24.229 clause 5.1.1.1A and 5.1.6.2 [10] when the UE is using ISIM the emergency public user identity is the first public user identity in the list stored in the ISIM; when there is no ISIM it is the default public user id if the UE successfully performed IMS registration with the IM CN subsystem before, and the temporary user id (derived from IMSI) in all other cases.

NOTE 5: URN is the outcome of the URL encoding (“Percent-Encoding” according to RFC 3986 [129]) of urn:urn-7:3gpp-service.ims.icsi.mmtel.

A.1.2 401 Unauthorized for REGISTER

Header/param	Cond	Value/remark	Reference
Status-Line			RFC 3261 [15]
SIP-Version		SIP/2.0
Status-Code		401
Reason-Phrase		Unauthorized
Via			RFC 3261 [15]
via-parm		same value as received in REGISTER message
To			RFC 3261 [15]
addr-spec		same value as received in REGISTER message
tag		common to-tag (register)
From			RFC 3261 [15]
addr-spec		same value as received in REGISTER message
tag		same value as received in REGISTER message
Call-ID			RFC 3261 [15]
callid		same value as received in REGISTER message
CSeq			RFC 3261 [15]
value		same value as received in REGISTER message
WWW-Authenticate		Digest	RFC 2617 [16] RFC 3310 [17]
realm		home domain name as stored in EF_DOMAIN or home domain name derived from the IMSI
	A2	home domain name as preconfigured in the UE
algorithm	A1	AKAv1-MD5
	A2	MD5
qop-value		auth
nonce		Base 64 encoding of RAND and AUTN
opaque		arbitrary value (to be returned by the UE in subsequent REGISTER)
Security-Server	A1		RFC 3329 [21]
mechanism-name		ipsec-3gpp
algorithm		px_IMS_SecAlgorithm (hmac-md5-96 or hmac-sha-1-96)
spi-c		SPI number of the inbound SA at the protected client port
spi-s		SPI number of the inbound SA at the protected server port
port-c		protected client port of SS
port-s		protected server port of SS
Encrypt-algorithm		des-ede3-cbc or aes-cbc
q		0.9
Mechanism-name		ipsec-3gpp
algorithm		Algorithm not selected by px_IMS_IPSecAlgorithm (hmac-sha-1-96 or hmac-md5-96)
spi-c		SPI number of the inbound SA at the protected client port
spi-s		SPI number of the inbound SA at the protected server port
port-c		protected client port of SS
port-s		protected server port of SS
encrypt-algorithm		des-ede3-cbc or aes-cbc
q		0.7
Security-Server	A2	not present
Content-Length			RFC 3261 [15]
value		0

Condition	Explanation
A1	IMS Security (A.6a/2 3GPP TS 34.229-2 [5])
A2	SIP Digest without TLS for Fixed Broadband Access (SIP Digest without TLS, A.6a/5 3GPP TS 34.229-2 [5])

A.1.3 200 OK for REGISTER

Header/param	Cond	Value/remark	Rel	Reference
Status-Line				RFC 3261 [15]
SIP-Version		SIP/2.0
Status-Code		200
Reason-Phrase		OK
Via				RFC 3261 [15]
via-parm		same value as received in REGISTER message
To				RFC 3261 [15]
addr-spec		same value as received in REGISTER message
tag		common to-tag (register)
From				RFC 3261 [15]
addr-spec		same value as received in REGISTER message
tag		same value as received in REGISTER message
Call-ID				RFC 3261 [15]
callid		same value as received in REGISTER message
CSeq				RFC 3261 [15]
value		same value as received in REGISTER message
Contact				RFC 3261 [15] RFC 5627 [61]
addr-spec		same value as received in REGISTER message
pub-gruu	A1	Public GRUU as the SIP URI got from the To header of the REGISTER request, together with the gr parameter with an arbitrary value
temp-gruu	A1	Temporary GRUU with an arbitrary value in the user part and the host part matching with the domain of the To header of the REGISTER and gr parameter without any value
	A3	not present
feature-param		same value as received in REGISTER message
expires		600000
P-Associated-URI		order of the parameters in this header must be like in the respective rows		RFC 7315 [132]
addr-spec	A2	all the IMPUs within the set of IMPUs on ISIM (NOTE 1), additional associated TEL URI (NOTE 2)
	A3	emergency public user identity (NOTE 3)
	A5	IMPU preconfigured in the UE, additional associated TEL URI (NOTE 2)
Service-Route	A2			RFC 3608 [19]
addr-spec		scscf.3gpp.org
uri-parameter		lr
Path				RFC 3327 [20]
addr-spec		SS P-CSCF address
uri-parameter		lr
Feature-Caps				RFC 6809 [125]
feature-param	A4	+g.3gpp.atcf="tel:+1-237-888-9999”	Rel-11
	A4	+g.3gpp.cs2ps-srvcc="<sip:sti-sr@atcf.visited2.net>"	Rel-11
Feature-Caps	A5	not present
Content-Length				RFC 3261 [15]
value		0

Condition	Explanation
A1	obtaining and using GRUUs in the Session Initiation Protocol (SIP) (A.4/53 3GPP TS 34.229-2 [5])
A2	Response for an non-emergency registration
A3	Response for an emergency registration
A4	Response if the UE provided the +g.3gpp.cs2ps-srvcc and +g.3gpp.cs2ps-srvcc-alerting feature-params in the REGISTER message
A5	SIP Digest without TLS for Fixed Broadband Access (SIP Digest without TLS, A.6a/5 3GPP TS 34.229-2 [5])

NOTE 1: The set of IMPUs shall be in accordance to annex E.3 independent of whether the UE has an ISIM on the UICC or not (i.e. when the UE has no ISIM SS shall use the same values as if the UE would have an ISIM; furthermore in this case the temporary public user id shall not be included in the set of IMPUs)

NOTE 2: any arbitrary (but valid) TEL URI

NOTE 3: According to TS 24.229 clause 5.1.1.1A and 5.1.6.2 [10] when the UE is using ISIM the emergency public user identity is the first public user identity in the list stored in the ISIM; when there is no ISIM it is the default public user id if the UE non-emergency registered with the IM CN and the temporary user id (derived from IMSI) in all other cases.

A.1.4 SUBSCRIBE for reg-event package

Header/param	Cond	Value/remark	Rel	Reference
Request-Line				RFC 3261 [15]
Method		SUBSCRIBE
Request-URI		Public user identity used for subscription (NOTE 1)
SIP-Version		SIP/2.0
Route		order of the parameters in this header must be like in the respective rows		RFC 3261 [15]
route-param	A1	<sip:SS P-CSCF address:protected server port of P-CSCF;lr>, <sip:scscf.3gpp.org;lr>
route-param	A2	<sip:SS P-CSCF address: unprotected server port of P-CSCF (optional);lr>, <sip:scscf.3gpp.org;lr>
Via				RFC 3261 [15]
sent-protocol		SIP/2.0/UDP when using UDP or SIP/2.0/TCP when using TCP
sent-by	A1	IP address or FQDN and protected server port of the UE
	A2	IP address or FQDN, port (optional) and not checked
via-branch		value starting with ‘z9hG4bK’
From				RFC 3261 [15]
addr-spec		Public user identity used for subscription (NOTE 1)
tag		must be present, value not checked but stored for later reference
To				RFC 3261 [15]
addr-spec		Public user identity used for subscription (NOTE 1)
tag		not present
Contact				RFC 3261 [15] RFC 5627 [61]
addr-spec	A1	SIP URI with IP address or FQDN and protected server port of UE
addr-spec	A2	SIP URI with IP address or FQDN and unprotected server port of UE
addr-spec	A4	Public GRUU as obtained during registration as pub-gruu contact parameter of the 200 OK for REGISTER response
Expires				RFC 3261 [15]
delta-seconds		600000
Security-Verify	A1			RFC 3329 [21]
sec-mechanism		same value as Security-Server header sent by SS
Security-Verify	A5	not present
Require	A1			RFC 3261 [15] RFC 3329 [21]
option-tag		sec-agree
Require	A5	not present
Proxy-Require	A1			RFC 3261 [15] RFC 3329 [21]
option-tag		sec-agree
Proxy-Require	A5	not present
CSeq				RFC 3261 [15]
value		value not checked
method		SUBSCRIBE
Call-ID				RFC 3261 [15]
callid		value not checked, but stored for later reference
Max-Forwards				RFC 3261 [15]
value		non-zero value
P-Access-Network-Info	A1,A5			RFC 7315 [132] RFC 7913 [154]
access-net-spec	A1 AND A6	access network information and, if applicable, the cell ID
access-net-spec	A5	access network information for Fixed Broadband and if applicable DSL Location Parameter
	A7	access network information for NR, containing access-class parameter with value "3GPP-NR" or access-type parameter with value "3GPP-NR-FDD" or "3GPP-NR-TDD", and also containing the cell ID	Rel-15
Accept		(if present)		RFC 3261 [15] RFC 3680 [22]
media-range		application/reginfo+xml
Event				RFC 6665 [140] RFC 3680 [22]
event-type		reg
Content-Length		header shall be present if UE uses TCP to send this message and if there is a message-body		RFC 3261 [15]
value		length of request body, if such is present

Condition	Explanation
A1	IMS security (A.6a/2 3GPP TS 34.229-2 [5])
A2	GIBA (A.6a/1 3GPP TS 34.229-2 [5])
A3	Void
A4	obtaining and using GRUUs in the Session Initiation Protocol (SIP) (A.4/53 3GPP TS 34.229-2 [5])
A5	SIP Digest without TLS for Fixed Broadband Access (SIP Digest without TLS, A.6a/5 3GPP TS 34.229-2 [5])
A6	UE uses E-UTRAN access (A.18/1 3GPP TS 34.229-2 [5])
A7	UE uses NR access (A.18/5 3GPP TS 34.229-2 [5])

NOTE 1: According to TS 24.229 clause 5.1.1.3 the public user identity used for subscription is:
a) when the UE has an ISIM the default public user identity or the public user identity used for initial registration
b) when the UE does not have an ISIM the default public user identity

A.1.5 200 OK for SUBSCRIBE

Header/param	Cond	Value/remark	Reference
Status-Line			RFC 3261 [15]
SIP-Version		SIP/2.0
Status-Code		200
Reason-Phrase		OK
Via			RFC 3261 [15]
via-parm		same value as received in SUBSCRIBE message
To			RFC 3261 [15]
addr-spec		same value as received in SUBSCRIBE message
tag		common to-tag (subscribe dialog)
From			RFC 3261 [15]
addr-spec		same value as received in SUBSCRIBE message
tag		same value as received in SUBSCRIBE message
Call-ID			RFC 3261 [15]
callid		same value as received in SUBSCRIBE message
CSeq			RFC 3261 [15]
value		same value as received in SUBSCRIBE message
Contact			RFC 3261 [15]
addr-spec		<scscf.3gpp.org>
Expires			RFC 3261 [15]
delta-seconds		600000
Record-Route			RFC 3261 [15]
addr-spec	A1	SS P-CSCF address: protected server port of SS
	A2,A3	SS P-CSCF address: unprotected server port of SS (optional)
uri-parameter		lr
Content-Length			RFC 3261 [15]
value		0

Condition	Explanation
A1	IMS security (A.6a/2 3GPP TS 34.229-2 [5])
A2	GIBA (A.6a/1 3GPP TS 34.229-2 [5])
A3	SIP Digest without TLS for Fixed Broadband Access (SIP Digest without TLS, A.6a/5 3GPP TS 34.229-2 [5])

NOTE1: All choices for applicable conditions are described for each header.

A.1.6 NOTIFY for reg-event package

Header/param	Cond	Value/remark	Reference
Request-Line			RFC 3261 [15]
Method		NOTIFY
Request-URI	A1	same URI as used by the UE in the corresponding REGISTER message and protected server port of UE
Request-URI	A2,A5	same URI as used by the UE in the corresponding REGISTER message and unprotected server port of UE
SIP-Version		SIP/2.0
Via		order of the parameters in this header must be like in this table	RFC 3261 [15]
via-parm1:
sent-protocol		SIP/2.0/UDP when using UDP or SIP/2.0/TCP when using TCP
sent-by	A1	IP address and protected server port of SS
	A2,A5	IP address and unprotected server port of SS (optional)
via-branch		value starting with ‘z9hG4bK’ (NOTE 3)
via-parm2:
sent-protocol		SIP/2.0/UDP when using UDP or SIP/2.0/TCP when using TCP
sent-by		scscf.3gpp.org
via-branch		value starting with ‘z9hG4bK’ (NOTE 3)
From			RFC 3261 [15]
addr-spec		same URI as received in the To header of the previous SUBSCRIBE message (NOTE 2)
tag		common to-tag (subscribe dialog)
To			RFC 3261 [15]
addr-spec		same URI as received in the From header of the previous SUBSCRIBE message (NOTE 2)
tag		same value as received in From tag of SUBSCRIBE message
Call-ID			RFC 3261 [15]
callid		same as value received in SUBSCRIBE message
CSeq	A1,A2,A5		RFC 3261 [15]
value		1
method		NOTIFY
Contact			RFC 3261 [15]
addr-spec		<sip:scscf.3gpp.org>
Content-Type			RFC 3261 [15]
media-type		application/reginfo+xml	RFC 3680 [22]
Event	A1,A2,A5		RFC 6665 [140]
event-type		reg	RFC 3680 [22]
Max-Forwards			RFC 3261 [15]
value		69
Subscription-State			RFC 6665 [140]
substate-value		active
expires		600000
Content-Length			RFC 3261 [15]
value		length of message-body
Message-body	A3	<?xml version="1.0" encoding="UTF-8"?> <reginfo xmlns="urn:ietf:params:xml:ns:reginfo" version="0" state="full"> <registration aor="PublicUserIdentity1 (NOTE 1) " id="a100" state="active"> <contact id="980" state="active" event="registered"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> <registration aor="AssociatedTelUri (NOTE 1) " id="a101" state="active"> <contact id="981" state="active" event="created"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> <registration aor="PublicUserIdentity2 (NOTE 1) " id="a102" state="active"> <contact id="982" state="active" event="registered"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> <registration aor="PublicUserIdentity3 (NOTE 1) " id="a103" state="active"> <contact id="983" state="active" event="registered"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> </reginfo>	RFC 3680 [22]
	A4	<?xml version="1.0" encoding="UTF-8"?> <reginfo xmlns="urn:ietf:params:xml:ns:reginfo" xmlns:gr="urn:ietf:params:xml:ns:gruuinfo" version="0" state="full"> <registration aor="PublicUserIdentity1 (NOTE 1) " id="a100" state="active"> <contact id="980" state="active" event="registered" callid="Call-Id of most recent REGISTER" cseq="CSeq value of most recent REGISTER"> <uri>same value as in Contact header of REGISTER request</uri> <unknown-param name="+sip.instance"> "Instance ID of the UE;" </unknown-param> <gr:pub-gruu uri="public GRUU associated to this aor"/> <gr:temp-gruu uri="temporary GRUU associated to this aor" first-cseq="CSeq of the REGISTER request that caused the temporary GRUU to assigned for the UE"/> </contact> </registration> <registration aor="AssociatedTelUri (NOTE 1) " id="a101" state="active"> <contact id="981" state="active" event="created"><uri>same value as in Contact header of REGISTER request</uri> <unknown-param name="+sip.instance"> "Instance ID of the UE;" </unknown-param> <gr:pub-gruu uri=" same public GRUU as for PublicUserIdentity1"/> <gr:temp-gruu uri=" same temporary GRUU as for PublicUserIdentity1" first-cseq="CSeq of the REGISTER request that caused the temporary GRUU to assigned for the UE"/> </contact> </registration> <registration aor="PublicUserIdentity2 (NOTE 1) " id="a102" state="active"> <contact id="982" state="active" event="registered"callid="Call-Id of most recent REGISTER" cseq="CSeq value of most recent REGISTER"> <uri>same value as in Contact header of REGISTER request</uri> <unknown-param name="+sip.instance"> "Instance ID of the UE;" </unknown-param> <gr:pub-gruu uri="public GRUU associated to this aor"/> <gr:temp-gruu uri="temporary GRUU associated to this aor" first-cseq="CSeq of the REGISTER request that caused the temporary GRUU to assigned for the UE"/> </contact> </registration> <registration aor="PublicUserIdentity3 (NOTE 1) " id="a103" state="active"> <contact id="983" state="active" event="registered"callid="Call-Id of most recent REGISTER" cseq="CSeq value of most recent REGISTER"> <uri>same value as in Contact header of REGISTER request</uri> <unknown-param name="+sip.instance"> "Instance ID of the UE;" </unknown-param> <gr:pub-gruu uri="public GRUU associated to this aor"/> <gr:temp-gruu uri="temporary GRUU associated to this aor" first-cseq="CSeq of the REGISTER request that caused the temporary GRUU to assigned for the UE"/> </contact> </registration> </reginfo>	RFC 5628 [62]
Message-body	A5	<?xml version="1.0" encoding="UTF-8"?> <reginfo xmlns="urn:ietf:params:xml:ns:reginfo" version="0" state="full"> <registration aor="PublicUserIdentity1 (NOTE 1) " id="a100" state="active"> <contact id="980" state="active" event="registered"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> <registration aor="AssociatedTelUri (NOTE 1) " id="a101" state="active"> <contact id="981" state="active" event="created"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> </reginfo>
Message-body	A3 AND A6	<?xml version="1.0" encoding="UTF-8"?> <reginfo xmlns="urn:ietf:params:xml:ns:reginfo" version="1" state="full"> <registration aor="PublicUserIdentity1 (NOTE 1)" id="a100" state="terminated"> <contact id="980" state="terminated" event="deactivated"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> <registration aor="AssociatedTelUri (NOTE 1)" id="a101" state="terminated"> <contact id="981" state="terminated" event="deactivated"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> <registration aor="PublicUserIdentity2 (NOTE 1)" id="a102" state="terminated"> <contact id="982" state="terminated" event="deactivated"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> <registration aor="PublicUserIdentity3 (NOTE 1)" id="a103" state="terminated"> <contact id="983" state="terminated" event="deactivated"> <uri>same value as in Contact header of REGISTER request</uri> </contact> </registration> </reginfo>
Message-body	A4 AND A6	<?xml version="1.0" encoding="UTF-8"?> <reginfo xmlns="urn:ietf:params:xml:ns:reginfo" xmlns:gr="urn:ietf:params:xml:ns:gruuinfo" version="1" state="full"> <registration aor="PublicUserIdentity1 (NOTE 1)" id="a100" state="terminated"> <contact id="980" state="terminated" event="deactivated" callid="Call-Id of most recent REGISTER" cseq="CSeq value of most recent REGISTER"> <uri>same value as in Contact header of REGISTER request</uri> <unknown-param name="+sip.instance">"Instance ID of the UE;"</unknown-param> <gr:pub-gruu uri="public GRUU associated to this aor"/> <gr:temp-gruu uri="temporary GRUU associated to this aor" first-cseq="CSeq of the REGISTER request that caused the temporary GRUU to assigned for the UE"/> </contact> </registration> <registration aor="AssociatedTelUri (NOTE 1)" id="a101" state="terminated"> <contact id="981" state="terminated" event="deactivated" <uri>same value as in Contact header of REGISTER request</uri> <unknown-param name="+sip.instance">"Instance ID of the UE;" </unknown-param> <gr:pub-gruu uri="same public GRUU as for PublicUserIdentity1"/> <gr:temp-gruu uri="same temporary GRUU as for PublicUserIdentity1" first-cseq="CSeq of the REGISTER request that caused the temporary GRUU to assigned for the UE"/> </contact> </registration> <registration aor="PublicUserIdentity2 (NOTE 1)" id="a102" state="terminated"> <contact id="982" state="terminated" event="deactivated" callid="Call-Id of most recent REGISTER" cseq="CSeq value of most recent REGISTER"> <uri>same value as in Contact header of REGISTER request</uri> <unknown-param name="+sip.instance">"Instance ID of the UE;"</unknown-param> <gr:pub-gruu uri="public GRUU associated to this aor"/> <gr:temp-gruu uri="temporary GRUU associated to this aor" first-cseq="CSeq of the REGISTER request that caused the temporary GRUU to assigned for the UE"/> </contact> </registration> <registration aor="PublicUserIdentity3 (NOTE 1)" id="a103" state="terminated"> <contact id="983" state="terminated" event="deactivated" callid="Call-Id of most recent REGISTER" cseq="CSeq value of most recent REGISTER"> <uri>same value as in Contact header of REGISTER request</uri> <unknown-param name="+sip.instance">"Instance ID of the UE;" </unknown-param> <gr:pub-gruu uri="public GRUU associated to this aor"/> <gr:temp-gruu uri="temporary GRUU associated to this aor" first-cseq="CSeq of the REGISTER request that caused the temporary GRUU to assigned for the UE"/> </contact> </registration> </reginfo>

Condition	Explanation
A1	IMS security (A.6a/2 3GPP TS 34.229-2 [5])
A2	GIBA (A.6a/1 3GPP TS 34.229-2 [5]
A3	NOT obtaining and using GRUUs in the Session Initiation Protocol (SIP) (A.4/53 3GPP TS 34.229-2 [5])
A4	obtaining and using GRUUs in the Session Initiation Protocol (SIP) (A.4/53 3GPP TS 34.229-2 [5])
A5 A6	SIP Digest without TLS for Fixed Broadband Access (SIP Digest without TLS, A.6a/5 3GPP TS 34.229-2 [5]) NOTIFY sent by SS for de-registering the UE

NOTE 1: The public user ids and the associated TEL URI are as returned to the UE in the P-Associated-URI header of the 200 (OK) response to the REGISTER request;
PublicUserId1 is the default public user id i.e. the first one contained in P-Associated-URI;
AssociatedTelUri is the same as used in P-Associated-URI
PublicUserId2 and PublicUserId3 are the remaining IMPUs of the P-Associated-URI header

NOTE 2: This results in using the public user identity used for subscription as defined in TS 24.229 clause 5.1.1.3.

NOTE 3: Branch parameter values sent by SS are different within a test case execution.

A.1.7 423 Interval Too Brief for REGISTER

Header/param	Value/remark	Reference
Status-Line		RFC 3261 [15]
SIP-Version	SIP/2.0
Status-Code	423
Reason-Phrase	Interval Too Brief
Via		RFC 3261 [15]
via-parm	same value as received in REGISTER message
To		RFC 3261 [15]
addr-spec	same value as received in REGISTER message
tag	common to-tag (register)
From		RFC 3261 [15]
addr-spec	same value as received in REGISTER message
Call-ID		RFC 3261 [15]
callid	same value as received in REGISTER message
CSeq		RFC 3261 [15]
value	same value as received in REGISTER message
Min-Expires		RFC 3261 [15]
delta-seconds	T (a decimal integer number of seconds between 0 and (2**32)-1)

A.1.8 420 Bad Extension for REGISTER

Header/param	Cond	Value/remark	Reference
Status-Line			RFC 3261 [15]
SIP-Version		SIP/2.0
Status-Code		420
Reason-Phrase		Bad Extension
Via			RFC 3261 [15]
via-parm		same value as received in REGISTER message
To			RFC 3261 [15]
addr-spec		same value as received in REGISTER message
tag		common to-tag (register)
From			RFC 3261 [15]
addr-spec		same value as received in REGISTER message
Call-ID			RFC 3261 [15]
callid		same value as received in REGISTER message
CSeq			RFC 3261 [15]
value		same value as received in REGISTER message
Unsupported			RFC 3261 [15]
option-tag		sec-agree
Content-Type	A1		RFC 3261 [15]
media-type		application/3gpp-ims+xml
Message-body	A1	<?xml version="1.0" encoding="UTF-8"?> <ims-3gpp version="1"> <alternative-service> <type>emergency</type> <action>anonymous-emergencycall</action> <reason></reason> </alternative-service> </ims-3gpp> (see NOTE 1)

Condition	Explanation
A1	IMS emergency call for an anonymous emergency call

NOTE 1: This XML body is defined in Rel-14 TS 24.229 [10] and may be ignored by pre-Rel-14 UE.