Retransmission timeout

Registration is sucessful, able to make call, but no sound at both the ends.

I have dynamic IP and have configured sip.conf with external host, opend the firewall port 5061 and range from 10000-20000.

Not sure about this error.

[2014-10-24 23:36:03] WARNING[2994]: chan_sip.c:4024 retrans_pkt: Retransmission timeout reached on transmission 286994695222@ for seqno 2 (Critical Response) – See … nsmissions
Packet timed out after 6399ms with no response

You need to enable SIP debugging and find out:

  1. which response is not being received;

  2. which IP addresses are being negotiated for audio.

Most probably you have not configured external addresses properly for NAT.

One question , did you read the link… Indicated on the Retransmission timeout message.? … nsmissions

People’s eyes glaze over when they see error messages and they ignore the helpful information they sometimes contain.