pre_answer() not send 183 with SDP

[embabi-712]

Describe the bug
i am trying to send early media stream for unallocated numbers before hangup the call but
pre_answer() not send 183 with SDP , it send 183 without sdp and i cannot hear the media on caller side

To Reproduce
Steps to reproduce the behavior:

1. Using this example configuration...
   !-- Unallocated Number Handling -->

2. Dial any unallocated number , no rtp played

Expected behavior
183 SDP should be sent , then rtp played

Package version or git hash

• Version [e.g. 1.10.4]

Trace logs

freeswitch | EXECUTE [depth=0] sofia/internal/[email protected] set(dialed_number=555666)
freeswitch | EXECUTE [depth=0] sofia/internal/[email protected] set(cf_target=)
freeswitch | EXECUTE [depth=0] sofia/internal/[email protected] set(raw_offset=+1200)
freeswitch | EXECUTE [depth=0] sofia/internal/[email protected] set(gmt_offset=GMT+12:00)
freeswitch | EXECUTE [depth=0] sofia/internal/[email protected] set(early_sdp=true)
freeswitch | EXECUTE [depth=0] sofia/internal/[email protected] pre_answer()
freeswitch | 2024-09-29 18:00:53.918999 99.93% [INFO] mod_dptools.c:1476 Sending early media
freeswitch | 2024-09-29 18:00:53.918999 99.93% [NOTICE] mod_sofia.c:2610 Pre-Answer sofia/internal/[email protected]!
freeswitch | 2024-09-29 18:00:53.918999 99.93% [NOTICE] sofia_media.c:90 Pre-Answer sofia/internal/[email protected]!
freeswitch | 2024-09-29 18:00:53.918999 99.93% [ERR] switch_ivr.c:1820 Can't re-establsh media on sofia/internal/[email protected]
freeswitch | EXECUTE [depth=0] sofia/internal/[email protected] playback(/etc/freeswitch/recording_custom/ivr-invalid_number_format_183.wav)
freeswitch | EXECUTE [depth=0] sofia/internal/[email protected] sleep(6000)
freeswitch | EXECUTE [depth=0] sofia/internal/[email protected] hangup(UNALLOCATED_NUMBER)
freeswitch | 2024-09-29 18:01:02.079000 99.93% [NOTICE] mod_dptools.c:1374 Hangup sofia/internal/[email protected] [CS_EXECUTE] [UNALLOCATED_NUMBER]

[suiyuemanbu]

because you set CF_PROXY_MODE.

[embabi-712]

@suiyuemanbu

what CF_PROXY_MODE ? , How can i change ?