From the logs found "marking rejected media" might causing issue. but not getting clue for what is causing issue for rejected media. Enclosed complete log for reference.
soa_static.c:1189 offer_answer_step() soa_static(0x7ff8b0038c40, soa_generate_answer): generating local description
soa_static.c:1230 offer_answer_step() soa_static(0x7ff8b0038c40, soa_generate_answer): upgrade with remote description
soa_static.c:1264 offer_answer_step() soa_static(0x7ff8b0038c40, soa_generate_answer): marking rejected media
soa_static.c:1029 soa_sdp_mode_set() soa_sdp_mode_set(0x7ff8d9924960, 0x7ff8b0b7f8e0, ""): called
soa_static.c:1446 offer_answer_step() soa_static(0x7ff8b0038c40, soa_generate_answer): storing local description
soa.c:1730 soa_activate() soa_activate(static::0x7ff8b0038c40, (nil)) called
soa.c:1270 soa_get_local_sdp() soa_get_local_sdp(static::0x7ff8b0038c40, [(nil)], [0x7ff8d9926ad0], [0x7ff8d9926acc]) called
tport.c:3257 tport_tsend() tport_tsend(0x7ff8b0004930) tpn = UDP/
5.2.2.6:5060tport.c:4046 tport_resolve() tport_resolve addrinfo =
5.2.2.6:506