[Spce-user] peer to peer calls

[Serge S. Yuriev]

Hello,

On 22/04/15 15:37, Barry Flanagan wrote:
> On 22 April 2015 at 13:30, Jon Bonilla (Manwe) <manwe at sipdoc.net 
> <mailto:manwe at sipdoc.net>> wrote:
>
>     El Wed, 22 Apr 2015 13:56:47 +0300
>     "Serge S. Yuriev" <me at nevian.org <mailto:me at nevian.org>> escribió:
>
>     > Hello,
>     >
>     > Thank you a lot, Jon.
>     >
>     > If I understand correctly we need to permanent register out PBX
>     to get
>     > incoming calls?
>
>     If you pbx does not register by itself yes, a permanent contact
>     should be added
>     as fake register.
>

Thanks, works like a charm.

>     > And a bit more advanced question:
>     > Our PBX (Cisco Unified Contact Manager to be more specific)
>     clustered
>     > and at any time given at least 3 nodes could process incoming
>     calls so
>     > how can we balance between them for redundancy?
>     >
>
>     ngcp system is capable of doing DNS SRV queries. If you add a
>     permanent contact
>     like:
>
>     sip:user at pbxdomain.com <mailto:sip%3Auser at pbxdomain.com>
>
>     and pbxdomain.com <http://pbxdomain.com> has SRV records pointing
>     to the three PBX systems with wight
>     and priority, the ngcp system will read those values and use them.
>
>
>
> Or you can set serial_forking_by_q_value (under Preferences -> 
> Internals) and then when you add your Permanent Registrations, set 
> them to the same q value for round robin, or different q values to 
> have failover.

With equal q values it does parallel forking regardless of 
serial_forking_by_q_value setting and we get 2-3 calls per device at 
once for each inbound :(

-- 
Serge S. Yuriev
Lead VoIP engineer

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