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authorHolger Hans Peter Freyther <zecke@selfish.org>2011-07-21 10:24:46 +0200
committerDaniel Willmann <daniel@totalueberwachung.de>2011-11-04 12:27:11 +0100
commit29cfbf942ad51ea325893172d4d30dafdfcd4c9c (patch)
tree8459fe20c1f555c38534abe6948b47b9423ebdce /openbsc/src
parent1f0cb7992ff51916c68dbc7194dc8f39730d2965 (diff)
audio: From RTP point of view we can use one payload for HR/FR AMR
Remove the separation of half-rate and full-rate AMR. The used rate can be found inside the AMR payload. The signalling of what kind of traffic channel is used can be done with the GSM 08.08 Chosen Channel IE in the Assignment Complete message. This way I can use a fixed payload type in the MGCP GateWay but have a mixed TCH/F and TCH/H config. E.g. use TCH/F FR3 for some subscribers when connected to MSC A but use AMR5.9 on a TCH/F for MSC B when all TCH/Hs are gone.
Diffstat (limited to 'openbsc/src')
-rw-r--r--openbsc/src/libbsc/abis_rsl.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/openbsc/src/libbsc/abis_rsl.c b/openbsc/src/libbsc/abis_rsl.c
index 3df3a0dc4..10b6a9764 100644
--- a/openbsc/src/libbsc/abis_rsl.c
+++ b/openbsc/src/libbsc/abis_rsl.c
@@ -1543,9 +1543,8 @@ static uint8_t ipa_rtp_pt_for_lchan(struct gsm_lchan *lchan)
case GSM48_CMODE_SPEECH_AMR:
switch (lchan->type) {
case GSM_LCHAN_TCH_F:
- return RTP_PT_AMR_FULL;
case GSM_LCHAN_TCH_H:
- return RTP_PT_AMR_HALF;
+ return RTP_PT_AMR;
default:
break;
}