[Spce-user] 477 - Unfortunately error on sending to next hop occurred (477/TM)

[Yazar Lwin]

Hi All,

Please help me with this.
I've 4 trunks to 2 provider. The call were released with 477 code when I
make outbound calls by one trunk. Below was the log from kamailio-lb. It
seems problem with tm module but the rest trunks are working fine. I am
using SPCE as sip gateway. This issue didn't happen with previous NGCP
server which was the same  deployment scenario.
--------------
lb log
--------
Mar 18 11:08:27 voice-gw01 lb[1254]: ERROR: tm [../../core/forward.h:228]:
msg_send_buffer(): udp_send failed
Mar 18 11:08:27 voice-gw01 lb[1256]: NOTICE: <script>: Reply from Inbound -
S=477 - Unfortunately error on sending to next hop occurred (477/TM)
M=INVITE IP=«udp»:«127.0.0.1»:«5062»
ID=«087d06957e82a46d148eb666464210de at 192.168.101.104:5060» UA='<null>'
DESTIP=«127.0.0.1»:«5060»
Mar 18 11:08:32 voice-gw01 lb[1255]: ERROR: <core> [core/udp_server.c:594]:
udp_send(): sendto(sock, buf: 0x7fd519eea858, len: 1339, 0, dst: (
10.1.1.126:5060), tolen: 16) - err: Network is unreachable (101)
Mar 18 11:08:32 voice-gw01 lb[1255]: ERROR: tm [../../core/forward.h:228]:
msg_send_buffer(): udp_send failed
Mar 18 11:08:32 voice-gw01 lb[1254]: NOTICE: <script>: Reply from Inbound -
S=477 - Unfortunately error on sending to next hop occurred (477/TM)
M=INVITE IP=«udp»:«127.0.0.1»:«5062»
ID=«2fb1be1958f2401e777d1abd757b32f7 at 192.168.101.104:5060» UA='<null>'
DESTIP=«127.0.0.1»:«5060»

Best regards,
Yazar
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