Retransmission timeout reached

General Help
1

I am constantly seeing this in my asterisk CLI

Packet timed out after 11200ms with no response

[2014-02-13 14:32:37] WARNING[1712]: chan_sip.c:4175 retrans_pkt: Retransmission timeout reached on transmission 4da5e510d704f4515dc293959e416 for seqno 1 (Critical Response) –
See https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions

My setup is as follows:

Public IP on Freepbx (remote hosted). The phones are behind a NAT (sonicwall) I’ve allowed “SIP Transformations” on the sonicwall. And in my extensions, i’ve made sure to set NAT as yes.

My ASterisk SIP settings are as follows:
NAT: NO
IP Configuration: Static IP
Reinvite Behavior: NO
RTP Timers: 30 - 300 -0

Anyone have any ideas why i keep getting those errors?

Thanks!

2

Please see that you wrote both:-

i’ve made sure to set NAT as yes.

and

My ASterisk SIP settings are as follows:
NAT: NO

Are you aware that Sonicwalls in their arrogance assume by default that all sip traffic behind them is to only one client and have no idea how to properly handle a server correctly? Did you turn off it’s “SIP helper function”?