[Asterisk-Users] Problem with an hardware phone: Maximum retries exceeded

[Michele]

Hello, this is my first message on thi ML;

I'hava a problem: I have a voismart 101 phone and at the moment of registration or when I make a call,in the asterisk's consolle i can read thi warning:

Nov 17 23:09:50 WARNING[2806]: chan_sip.c:683 retrans_pkt: Maximum retries exceeded on call ac3a1b7a-031a90de-44983173-4cfd2244 at 192.168.20.13 for seqno 1550 (Non-critical Response)

and i cannot use the phone. Do you have already see this message? do you know it? I'v serach with google, but i cannot found any information.

Thanks a lot.

Michele P.