I had a similar problem with a Cisco phone, i.e., the "Maximum retries exceeded on call" error. It took three days to track down the error to buggy network hardware.
Same symptoms, too - phone registered, one way conversation was ok (had a test extension for music on hold) Fixed the hardware, phone works great. John ----- Original Message ----- From: "Mike Machado" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, January 04, 2004 10:16 PM Subject: [Asterisk-Users] Grandstream Handytone 286 RTP Problems > I am trying to get the handytone 286 to make a very simple call to * and > having problems. It registers with * just fine, but when I place a call > (to echo test, for example), the RTP stream seems to have problems > opening. Here is there error I get in *: > > WARNING[98311]: File chan_sip.c, Line 464 (retrans_pkt): Maximum retries > exceeded on call [EMAIL PROTECTED] for > seqno 0 (Response) > > When doing traces with ethereal, I see successful SIP and SDP > handshakes, but when * sends handytone RTP packets, I see a ICMP Port > Unreachable messages sent from Handytone to * regarding the UDP RTP > packet. * then gives up and I see a BYE from *, which handytone acks. > > Handytone config is default except obvious SIP registration parameters. > I also have a Sipura SPA2000 and everything works perfect for that one, > same extension and everything (not at same time of course). > > sip.conf entry: > > disallow=all ; Disallow all codecs > allow=ilbc > allow=ulaw ; Allow codecs in order of preference > > [131] > type=friend > host=dynamic > reinvite=no > canreinvite=no > qualify=300 > callerid="handytone <131>" > mailbox=131 > nat=0 > > > Handytone info: > > Software Version: Program--1.0.4.17 Bootloader--1.0.0.11 > HTML--1.0.0.19 > > > Both on same subnet, no NAT. I have two Handytones, both exhibit same > symptoms. > > Anyone else have this problem? > > > -- > > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users