[asterisk-users] sip.conf for internetcalls.com

[Dovid B]

404 means that the number you are dialing is not available on the remote 
end. Is there anything that you do that makes it break or is it random ? If 
it is random I would speak to your ITSP.

----- Original Message ----- 
From: "Jaap Winius" <jwinius at umrk.to>
To: <asterisk-users at lists.digium.com>
Sent: Tuesday, December 25, 2007 1:14 AM
Subject: Re: [asterisk-users] sip.conf for internetcalls.com


> Quoting Justin Case <nogoodnameswereavailable at gmail.com>:
>
>> What comes up in the Asterisk CLI?
>
> When it's not working, nothing appears in the CLI even though I've used
> "set verbose 10".
>
>> Also it can be a NAT issue?
>
> How can that lead to this intermittent behavior? I've already set
> "nat=yes". Also, I'm using an ADSL router with a NAT; not anything
> like iptables.
>
>> Have Asterisk register every 3-4 minutes.
>
> I'm not sure how to do that. I found "defaultexpirey", but the default for 
> it
> is two minutes. Anyway, why would that help with Asterisk, when my
> previous SIP client, a Linksys SPA3000, was configured with a register
> expire time of an
> hour and worked fine with InternetCalls.com.
>
> I think something else is going on. Using tcpdump, I see this when
> things are working okay:
>
> ----------------------
> 23:38:05.354523 IP 198-rsvd-tviconnect.62.221.194.in-addr.arpa.sip >
> bitis.umrk.to.sip: SIP, length: 847
>    INVITE sip:inetcalls-in at 192.168.1.10:5060 SIP/2.0
> Via
> 23:38:05.355065 IP bitis.umrk.to.sip >
> 198-rsvd-tviconnect.62.221.194.in-addr.arpa.sip: SIP, length: 471
>    FSIP/2.0 100 Trying
> Via: SIP/2.0/UDP 194.221.62.198:50
> .....
> 23:38:11.007350 IP 198-rsvd-tviconnect.62.221.194.in-addr.arpa.sip >
> bitis.umrk.to.sip: SIP, length: 507
>    ACK sip:inetcalls-in at 192.168.1.10:5060 SIP/2.0
> Via: S
> ----------------------
>
> The ACK packet is sent after the conversation (.....) has ended.
> However, when it doesn't work, I see this:
>
> ----------------------
> 23:42:24.736377 IP 194.120.0.198.sip > bitis.umrk.to.sip: SIP, length: 841
>    INVITE sip:inetcalls-in at 192.168.1.10:5060 SIP/2.0
> Via
> 23:42:24.736898 IP bitis.umrk.to.sip > 194.120.0.198.sip: SIP, length: 445
>    SIP/2.0 404 Not Found
> Via: SIP/2.0/UDP 194.120.0.198:
> 23:42:24.756967 IP 194.120.0.198.sip > bitis.umrk.to.sip: SIP, length: 505
>    ACK sip:inetcalls-in at 192.168.1.10:5060 SIP/2.0
> Via: S
> ----------------------
>
> In this case, the ACK follows immediately after the "404 Not Found".
>
> Cheers,
>
> Jaap
>
>
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