[Spce-user] Issues calling specific areas and my carriers suggestion

Scott C. Fertig scottf at zstaff.wcoil.com
Tue Feb 10 19:38:52 EST 2015


Thanks Jon,
This indeed was not the issue, I started to question it when I found I could make calls to these destinations when using different devices. This was an issue with an adtran not offering sdp, on the adtran I set the codec priority to offer sdp and then the issue was resolved. Thanks so much for your reply!

--Scott


-----Original Message-----
From: Spce-user [mailto:spce-user-bounces at lists.sipwise.com] On Behalf Of Jon Bonilla (Manwe)
Sent: Tuesday, February 10, 2015 7:18 PM
To: spce-user at lists.sipwise.com
Subject: Re: [Spce-user] Issues calling specific areas and my carriers suggestion

El Tue, 10 Feb 2015 16:51:04 -0500 (EST) "Scott C. Fertig" <scottf at zstaff.wcoil.com> escribió:

> Hello All,
> 
> I've recently began using sipwise as a proxy between a few carriers, 
> one of these carriers handles calls for specific prefixes. For some of 
> these prefixes (all of which appear to be owned by the same carrier) I 
> cannot complete calls to, other prefixes complete with no issue. My 
> provider suggested the following:
> 
> 
> "I've looked through your packets being sent by your system and it 
> appears that the packet size is a little too big for our upstream 
> carriers. So the calls to that area are having issues. Is it possible 
> for you to remove some of the extra Via header or Record route in your 
> signaling. Typically packets don't have the extra routes and Vias for 
> your private IP addresses. If you can cut down the packet size I 
> believe that calls should be getting connected as expected. Let me know if that helps."
> 
> 
> Is this possible to do is ngcp/sipwise, and is is really the correct answer? 


The answer form your carrier has no sense IMHO. You cannot delete arbitrary headers!

If thye have problem with the size (weird) you should use TCP to connect with them.


Other answer would be to use a SBC/B2BUA between that carrier and your spce where VIA and Route headrs would not show as there is only a single hop. 


This is not a spce problem but a carrier problem.


cheers,

Jon




More information about the Spce-user mailing list