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

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@umrk.to>
To: <asterisk-users@lists.digium.com>
Sent: Tuesday, December 25, 2007 1:14 AM
Subject: Re: [asterisk-users] sip.conf for internetcalls.com

> Quoting Justin Case <nogoodnameswereavailable@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@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@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@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@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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