I'm getting the following messages when a call is answered by a SIP device: Nov 28 13:03:01 NOTICE[22824]: rtp.c:1146 ast_rtp_raw_write: RTP Transmission error to 192.168.1.254:19262: Operation not permitted For a Cisco 7940 line, I have the following sip.conf entry: [desk2] type=friend username=desk2 secret=xxx host=dynamic dtmfmode=rfc2833 context=international canreinvite=no callerid="xxx"<3034144980> mailbox=701@xxx nat=yes qualify=yes accountcode=xxx disallow=all allow=ulaw allow=g729 The Asterisk system faces the Internet on a public IP. The phone is behind NAT. Asterisk version is 1.0.7. What can I do to fix this problem? Thanks,
Michael Welter wrote:> I'm getting the following messages when a call is answered by a SIP device: > > Nov 28 13:03:01 NOTICE[22824]: rtp.c:1146 ast_rtp_raw_write: RTP > Transmission error to 192.168.1.254:19262: Operation not permitted > > For a Cisco 7940 line, I have the following sip.conf entry: > > [desk2] > type=friend > username=desk2 > secret=xxx > host=dynamic > dtmfmode=rfc2833 > context=international > canreinvite=no > callerid="xxx"<3034144980> > mailbox=701@xxx > nat=yes > qualify=yes > accountcode=xxx > disallow=all > allow=ulaw > allow=g729 > > The Asterisk system faces the Internet on a public IP. The phone is > behind NAT. > > Asterisk version is 1.0.7. >It has nothing to do with DTMF. It is getting a few rejected rtp frames from the kernel 'sendto' function immediately after the call is answered. Does anyone offer some insight? Thanks,