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Bug #1683

open

osmo-sip-connector: Implement codec selection / move codec selection to osmo-msc

Added by zecke almost 8 years ago. Updated over 3 years ago.

Status:
Stalled
Priority:
Low
Assignee:
Target version:
-
Start date:
03/31/2016
Due date:
% Done:

80%

Resolution:
Spec Reference:

Description

We need to select codecs.. There were multiple mails on the OpenBSC list. For GSM MO call we need to check the bearer calls and the availability of channels and then can offer different codecs. The FR vs. HR decision needs to be done early but then codec can be changed.

The MNCC protocol needs to change in many still to be defined ways. This includes:

  • NITB needs to inform which TCH/F.. TCH/H are available
  • RTP_CREATE/RTP_CONNECT needs to include AMR mode-sets
  • Need to test switching codec
  • BTS needs to support Payload2 to allow asymentric PayloadType for the same codec!

Files

msc_mncc_mt_sip_mgcp.png View msc_mncc_mt_sip_mgcp.png 120 KB laforge, 03/24/2018 06:48 PM
msc_mncc_mo_sip_rel18x_mgcp.png View msc_mncc_mo_sip_rel18x_mgcp.png 149 KB proposed MO call with reliable 18x option laforge, 03/26/2018 08:36 PM
msc_mncc_mo_sip_mgcp.png View msc_mncc_mo_sip_mgcp.png 142 KB proposed MO call without reliable 18x option laforge, 03/26/2018 08:36 PM
codecs.png View codecs.png 53.9 KB neels, 08/14/2019 01:24 AM
codecs2.png View codecs2.png 46.2 KB neels, 08/14/2019 01:33 AM
codecs3.png View codecs3.png 56.9 KB neels, 08/15/2019 04:00 AM
codecs4.png View codecs4.png 65.1 KB neels, 08/15/2019 04:00 AM
codecs5.png View codecs5.png 132 KB neels, 08/28/2019 04:31 PM

Related issues

Related to OsmoMSC - Bug #2854: OsmoMSC never updates bearer capability from MNCCResolvedlaforge01/22/2018

Actions
Related to OsmoMSC - Feature #2832: MNCC doesn't include field for "supported codecs"New01/16/2018

Actions
Related to OsmoMGW - Bug #3114: libosmo-mgcp doesn't properly deal with SDP containing multiple codecsResolveddexter03/26/2018

Actions
Related to OsmoMGW - Bug #3115: libosmo-mgcp_client isn't able to properly encode SDP with multiple codec optionsResolveddexter03/26/2018

Actions
Related to OsmoMSC - Bug #3650: MSC is not sending a payload_type to MNCC?Closeddexter10/12/2018

Actions
Related to osmo-sip-connector - Bug #5177: respect dynamic RTP payload types of external SIPNewneels06/12/2021

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