[asterisk-users] First SIP-registering succeeds, second doesn't
isrlgb at gmail.com
Mon Feb 13 11:38:22 CST 2017
Disable all sip alg/helpers in the router
From: andregronwald78 at gmail.com
Sent: February 13, 2017 6:40 PM
To: asterisk-users at lists.digium.com
Reply-to: asterisk-users at lists.digium.com
Subject: Re: [asterisk-users] First SIP-registering succeeds, second doesn't
Some further information:
asterisk version: 13.13.1, pjsip (pjproject) 2.5.5
Am 13.02.2017 um 17:32 schrieb Andre Gronwald:
> Hi all,
> I have a strange issue, with a some kind complicate architecture...
> A router of our internet provider is in front of another bintec rs353j
> router, at which my freepbx installation is located. However, NAT etc.
> seems to work fine.
> BUT: Something is not working...:
> When registering my sip-trunk towards my provider (3 different
> providers, all behave comparable), everything works at first. Calls
> are possible. But after some time, when the next REGISTER happens, the
> answer of my provider is sent towards the wrong port. My freePBX
> listens on 55060, where the first registration request are answered as
> they should. in the second registration request wrong ports are used.
> besides this, Header "Expires" is set to "0" and no "Allows" are
> Any suggestions how to fix this? Or at least any idea what causes this?
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