7 Effect of Handover
23.0143GPPRelease 17Support of Dual Tone Multi-Frequency (DTMF) signallingTS
7.1 Internal Handover
There is unlikely to be any impact on DTMF due to internal handover.
7.2 External Handover
Depending on the exact moment when handover occurs, there may be a slight possibility of cutting short a DTMF tone.
For protocol reasons, in the case of an MSC receiving a STOP DTMF message when no tone is being sent, it should respond with an acknowledgement as usual.
No other impact is seen due to external handover.
Annex A (informative):
Change history
|
Change history |
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|---|---|---|---|---|---|---|
|
TSG CN# |
Spec |
Version |
CR |
<Phase> |
New Version |
Subject/Comment |
|
Apr 1999 |
3GPP TS 03.14 |
7.0.0 |
Transferred to 3GPP CN1 |
|||
|
CN#03 |
23.014 |
3.0.0 |
Approved at CN#03 |
|||
|
CN#06 |
23.014 |
3.0.0 |
001r1 |
R99 |
3.1.0 |
Clarification of DTMF procedure |
|
CN#11 |
23.014 |
3.1.0 |
Rel-4 |
4.0.0 |
TSG CN#11 decided to issue this specification as Release 4 on 03-2001 |
|
|
NP-16 |
23.014 |
4.0.0 |
Rel-5 |
5.0.0 |
TSG CN#16 decided to issue this specification as part of release 5 on June 2002. ETSI/MCC updated this version with references and editorials. |
|
|
NP-17 NP-020365 |
23.014 |
5.0.0 |
006 |
Rel-5 |
5.1.0 |
Dual Tone Multi-Frequency signalling : Support in the whole 3GPP system, and editorial modifications. Cat A CR |
|
NP-26 |
23.014 |
5.1.0 |
007 |
Rel-6 |
6.0.0 |
Introduction of new references for DTMF |
|
6.0.0 |
7.0.0 |
Upgraded to Rel-7 (MCC) |
||||
|
CP-42 |
23.014 |
7.0.0 |
008r1 |
Rel-8 |
8.0.0 |
DTMF transmission during multimedia call |
|
CP-46 |
8.0.0 |
Rel-9 |
9.0.0 |
Upgraded to Rel-9 (MCC) |
||
|
CP-51 |
9.0.0 |
Rel-10 |
10.0.0 |
Upgraded to Rel-10 (MCC) |
||
|
CP-57 |
10.0.0 |
Rel-11 |
11.0.0 |
Upgraded to Rel-11 (MCC) |
||
|
CP-65 |
11.0.0 |
Rel-12 |
12.0.0 |
Upgraded to Rel-12 (MCC) |
||
|
CP-70 |
12.0.0 |
Rel-13 |
13.0.0 |
Upgraded to Rel-13 (MCC) |
||
|
Change history |
|||||||
|
Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
|
2017-03 |
CT-75 |
– |
– |
– |
Update to Rel-14 version (MCC) |
14.0.0 |
|
|
2018-06 |
SA-80 |
– |
– |
– |
– |
Update to Rel-15 version (MCC) |
15.0.0 |
|
2020-07 |
SA-88e |
– |
– |
– |
– |
Update to Rel-16 version (MCC) |
16.0.0 |
|
2022-03 |
SA-95e |
– |
– |
– |
– |
Update to Rel-17 version (MCC) |
17.0.0 |