[asterisk-users] Asterisk chan_sip registration attempts

[Matt Riddell (lists)]

Maybe the provider has added an extra gateway and it is not processing accounts correctly. 

If they had one before and now two then 40-60% registration fails would show that. 

Kind regards,

Matt

> On Oct 10, 2017, at 06:27, Dmitriy Ermakov <demonihin at gmail.com> wrote:
> 
> Hello!
> 
> Could you help me with Asterisk 11.21.2 and AsteriskNow platform.
> 
> The problem is:
> 
> My Asterisk PBX has SIP (chan_sip) trunk to provider.
> 
> Asterisk periodically loses trunk registratrion:
> 
> sip show registry:
> 
> Host                                    dnsmgr Username       Refresh State                Reg.Time                 
> X.X.X.X:5060                    N      <LOGIN>            105 Unregistered           
> 
> This happens sometimes once per 4 hours, sometimes once per a week.
> 
> I don't see any patterns.
> 
> sip.conf:
> 
> registerattempts=0
> 
> registertimeout=20
> 
> peer confifuration:
> [XXXX-friend]
> disallow=all
> host=192.168.1.1
> defaultuser=<phone number>
> fromuser=<phone number>
> callerid=<phone number>
> secret=<ISP secret>
> type=friend
> qualify=yes
> allow=ulaw
> allow=alaw
> nat=no
> rtpkeepalive=10
> dtmfmode=rfc2833
> insecure=port,invite
> context=from-trunk-ISP1
> fromdomain=<ISP domain>
> registration string:
> 
> register=<phone number>:<ISP secret>@<ISP domain>/<phone number>
> 
> where:
> 
> <phone number> is our ISP-provided phone number
> 
> <ISP secret> is our ISP-provided SIP secret
> 
> <ISP domain> is our ISP SIP server IP address
> 
> I don't have NAT between the ISP and my server (the ISP server IP address is in Asterisk's sip.conf Localnet scope) but as I can see there is ISP's routers between my Asterisk and the ISP SIP server.
> There is not any firewall between the ISP and my Asterisk. The firewall rules on Asterisk host allow any traffic from host to the ISP and allow 5060/UDP from ISP to Asterisk host.
> 
> 
> When I restart Asterisk I can see successful registration to the ISP. And it works. I can make calls in any direction but after some time I have the "Unregistered" status and calls don't work.
> 
> When I make tcpdump I can see about 40-60% failed REGISTER attempts (401 forbidden) and 100% failed OPTIONS attempts (is it qualify packets?) with 401 forbidden.
> 
> The interesting thing is: the last REGISTER packet from my Asterisk to the ISP has "OK" response and there was not any REGISTER attempts after this packet, only OPTIONS packets.
> The second interesting thing is: this ISP has been working for about 6 or even 12 months before this problem happened.
> 
> 
> What should I check to understand and solve my problem?
> 
> 
> P.S. I'm sorry for my bad English(
> -- 
> Dmitriy Ermakov
> -- 
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