Turning on all of the Sofia debugging options reveals the following.
FS sends out the invite (UDP, 1245 bytes).
Then we get:
nta: timer shortened to 500 ms
tport_wakeup_pri(0x2490700): events ERR
tport_udp_error: icmp(6) message was truncated (at 832)
tport_udp_error: Message too long (90) [icmp6 type=2 code=0 info=00000500]
reported by [2001:470:0:5d::2]:65535
tport_release(0x2490700): 0x7fe244098c10 by 0x25022a0 with (nil)
nta: INVITE (108544297): Message too long (90) with udp/[xxxxx - remote host's
IPv6 address]:5060
nua(0x7fe24409af90): event r_invite 503 Service Unavailable
nua(0x7fe24409af90): call state changed: calling -> init
nua: nua_application_event: entering
nua(0x7fe24409af90): event i_state 503 Service Unavailable
nua(0x7fe24409af90): event i_terminated 503 Service Unavailable
nua: nua_handle_magic: entering
nua(0x7fe24409af90): removing session usage
nua: nua_application_event: entering
nta_leg_destroy(0x7fe2440822f0)
2008-12-15 18:14:27 [DEBUG] sofia.c:2529 sofia_handle_sip_i_state() Channel
sofia/external-ipv6/[email protected] entering state [terminated]
The IPv6 address that sent the "message too long" error is presumably that of
a router between my FreeSWITCH box and my friend's FreeSWITCH box.
Is there a way around this?
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