[VoiceOps] Disconnected numbers and SIP

Geoffrey Mina gmina at connectfirst.com
Tue Oct 20 22:02:38 EDT 2015

We struggled with this and eventually integrated our switch with Speedeon Data. They have a disconnected number scrubbing API. We sell it as an additional feature to customers who are interested in knowing when numbers are disconnected.

On Oct 20, 2015, at 7:39 PM, Alex Balashov <abalashov at evaristesys.com<mailto:abalashov at evaristesys.com>> wrote:


Are there ISUP cause codes for disconnected numbers? And if so, do there exist established mappings for them to SIP?

I've never seen this present from any SIP termination gateway. As far as I know, disconnects are expressed in in-band audio service announcements fed backward via early media, followed ‎by a rather generic SIP negative final response and reason. However, I'd be remiss not to ask!


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/

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