[Asterisk-Users] Remote employees using Polycom 501 lose ability to receive incoming calls after few minutes.

[Michael Graves]

Sounds like the registration interval in the phones is less than the required registration interval of the server. I had this occur when using a SIP phone with an ITSP.

Michael

On Wed, 28 Jun 2006 12:04:40 -0400, Von L. wrote:

>Hello,

>Here is a breakdown of the issue I am experiencing. I have three remote
>employees, in various states, who have Polycom 501 phones. They are
>unable to receive incoming calls after a few minutes of the phones being
>plugged in. They work immediately after being plugged in, but they lose
>the ability shortly thereafter. They can always make outbound calls, but
>only to real phone numbers, not extensions.

>They each have NAT routers, and I have triple checked that they have
>opened/forwarded the correct ports, basically 5060-30000 UDP. Once they
>plug the phone it (power and ethernet) I see on the CLI console of the
>asterisk server that the phones register:

>Asterisk CVS-v1-0-12/01/04-18:46:01, Copyright (C) 1999-2004 Digium.
>Written by Mark Spencer <markster at digium.com>
>=========================================================================
>Connected to Asterisk CVS-v1-0-12/01/04-18:46:01 currently running on
>bell (pid = 3652)
>nell*CLI>
>Verbosity is at least 10
>-- Registered SIP '3015' at XXX.XXX.XXX.XXX port 1500 expires 3600

>Here is the top part of my sip.conf

>;_____________________________________________________________
>;sip.conf
>;_____________________________________________________________

>[general]
>port=5060
>bindaddr=0.0.0.0
>externip=XXX.XXX.XXX.XXX
>localnet=XXX.XXX.XXX.XXX/255.255.255.248
>canreinvite=no
>tos=reliability
>srvlookup=yes
>disallow=all
>allow=ulaw
>dtmfmode=rfc2833
>nat=yes
>ignoreregexpire=yes

>I know it has something to do with the NAT because if I plug my Polycom
>directly into my cable modem, thus making it sit on the Internet and
>have a real IP, everything works just fine.

>I am curious what I am missing.

>Thanks.

>Von L.
>_______________________________________________
>--Bandwidth and Colocation provided by Easynews.com --

>Asterisk-Users mailing list
>To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users



-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20060628/5045b975/attachment.htm