10.1.15 Automatic response to a network request for PDP context activation +CGAUTO

27.0073GPPAT command set for User Equipment (UE)Release 18TS

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

Table 124: +CGAUTO parameter command syntax

Command	Possible response(s)
+CGAUTO=[<n>]	+CME ERROR: <err>
+CGAUTO?	+CGAUTO: <n>
+CGAUTO=?	+CGAUTO: (list of supported <n>s)

Description

The set command disables or enables an automatic positive or negative response (auto-answer) to the receipt of a NW-initiated Request PDP Context Activation message, NW-initiated Request EPS Bearer Activation/ Modification Request messages and a NW-initiated PDU Session Modification Command message. It also provides control over the use of the V.250 basic commands ‘S0’, ‘A’ and ‘H’ for handling network requests for PDP context activation. The setting does not affect the issuing of the unsolicited result code RING or +CRING.

When the +CGAUTO=0 command is received for GERAN, UTRAN or E-UTRAN RATs, the MT shall not perform a PS detach if it is attached. Subsequently, when the MT announces a network request for PDP context activation by issuing the unsolicited result code RING or +CRING, the TE may manually accept or reject the request by issuing the +CGANS command or may simply ignore the network request.

When the +CGAUTO=1 command is received for GERAN, UTRAN or E-UTRAN RATs, the MT shall attempt to perform a PS attach if it is not already attached. Failure will result in ERROR or, if enabled, +CME ERROR being returned to the TE. Refer clause 9.2 for possible <err> values. Subsequently, when the MT announces a network request for PDP context activation by issuing the unsolicited result code RING or +CRING to the TE, this is followed by the intermediate result code CONNECT. The MT then enters V.250 online data state and follows the same procedure as it would after having received a +CGANS=1 with no <L2P> or <cid> values specified.

The read command returns the current value of <n>.

The test command returns the values of <n> supported by the MT as a compound value.

Defined values

<n>: integer type

0 turn off automatic response for Packet Domain only

1 turn on automatic response for Packet Domain only

2 modem compatibility mode, Packet Domain only

3 modem compatibility mode, Packet Domain and circuit switched calls

4 turn on automatic negative response for Packet Domain only

For <n>=0 Packet Domain network requests are manually accepted or rejected by the +CGANS command.

For <n>=1 Packet Domain network requests are automatically accepted according to the description above.

For <n>=2, automatic acceptance of Packet Domain network requests is controlled by the ‘S0’ command. Manual control uses the ‘A’ and ‘H’ commands, respectively, to accept and reject Packet Domain requests. (+CGANS may also be used.) Incoming circuit switched calls can be neither manually nor automatically answered.

For <n>=3, automatic acceptance of both Packet Domain network requests and incoming circuit switched calls is controlled by the ‘S0’ command. Manual control uses the ‘A’ and ‘H’ commands, respectively, to accept and reject Packet Domain requests. (+CGANS may also be used.) Circuit switched calls are handled as described elsewhere in this specification.

For <n>=4, Packet Domain network requests are automatically rejected.

Implementation

Optional. If not implemented, the MT shall behave according to the case of <n>=3.