[Asterisk-Users] Grandstream Handytone 286 RTP Problems

[John Baker]

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" <mike at homelandtel.com>
To: <asterisk-users at lists.digium.com>
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 20d1c411-e210-5f3d-3f88-19035c8fcb26 at 192.168.2.6 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?
>
>
> -- 
>
>
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