[VoiceOps] Disconnected numbers and SIP

[Brooks Bridges]

Every Sonus switch I've encountered in the wild would always route advance to the next gateway on the trunk group if I returned a 603 to it, and I'm just grousing about that behavior specifically.  A 404 feels like it's a little incorrect, as it says " The server has definitive information that the user does not exist at the domain specified in the Request-URI", however in this case it certainly does *exist*, it's just not allocated at this time.  From a purely logical perspective, a 603 feels more accurate for a number I own but isn't allocated because I'm declining to take the call ("choosing not to participate") and I know no one else will be able to connect it either since I own that number.

I did eventually have to resort to returning a 404 to make it work the way it's supposed to, but it's still annoying.  Sonus (or anyone else for that matter) shouldn't be route advancing on a status code that explicitly states "do not try any other endpoints".

Brooks Bridges | Sr. Voice Services Engineer
O1 Communications
5190 Golden Foothill Pkwy 
El Dorado Hills, CA 95762
office: 916.235.2097 | main: 888.444.1111, Option 2
email: bbridges at o1.com | web: www.o1.com


-----Original Message-----
From: Paul Timmins [mailto:paul at timmins.net] 
Sent: Wednesday, October 21, 2015 12:06 PM
To: Brooks Bridges
Cc: VoiceOps
Subject: Re: [VoiceOps] Disconnected numbers and SIP

If this was true, why does ISUP 1 map to 404 by standard?

On Oct 21, 2015 2:13 PM, Brooks Bridges <bbridges at o1.com> wrote:
>
> "6xx codes are supposed to be used to indicate definitive knowledge that a number can't be reached by any other means globally." 
>
> Yet vendors build hardware that still route advances on a 6XX... (yes, 
> I'm looking at you, Sonus)  *grumble*
>
> Brooks Bridges | Sr. Voice Services Engineer
> O1 Communications
> 5190 Golden Foothill Pkwy
> El Dorado Hills, CA 95762
> office: 916.235.2097 | main: 888.444.1111, Option 2
> email: bbridges at o1.com | web: www.o1.com
>
> -----Original Message-----
> From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of 
> Alex Balashov
> Sent: Wednesday, October 21, 2015 11:04 AM
> To: Peter E
> Cc: VoiceOps
> Subject: Re: [VoiceOps] Disconnected numbers and SIP
>
> I see 404 fairly commonly used to indicate "I don't have a route for this". 6xx codes are supposed to be used to indicate definitive knowledge that a number can't be reached by any other means globally. 
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
> 303 Perimeter Center North, Suite 300 Atlanta, GA 30346 United States
>
> Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
> Sent from my BlackBerry. 
>
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