diff options
| -rw-r--r-- | src/osmo-bsc/lchan_fsm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/osmo-bsc/lchan_fsm.c b/src/osmo-bsc/lchan_fsm.c index 0c54efb6d..7cbba4499 100644 --- a/src/osmo-bsc/lchan_fsm.c +++ b/src/osmo-bsc/lchan_fsm.c @@ -545,6 +545,15 @@ static void lchan_fsm_wait_ts_ready_onenter(struct osmo_fsm_inst *fi, uint32_t p return; } + /* Do not include 12.2 kbps rate when S1 is set. */ + if (lchan->type == GSM_LCHAN_TCH_H && (info->s15_s0 & GSM0808_SC_CFG_AMR_4_75_5_90_7_40_12_20)) { + /* See also 3GPP TS 28.062, chapter 7.11.3.1.3: "In case this Configuration + * "Config-NB-Code = 1" is signalled in the TFO Negotiation for the HR_AMR + * Codec Type,then it shall be assumed that AMR mode 12.2 kbps is (of course) + * not included. */ + mr_conf.m12_2 = 0; + } + if (lchan_mr_config(lchan, &mr_conf) < 0) { lchan_fail("Can not generate multirate configuration IE\n"); return; |