[VoiceOps] SIP routing engine - growing pains

[Alex Balashov]

I would agree with Scott strongly.

Scott Berkman wrote:

> OpenSIPs/Kamillo/SER or whatever it's called today can do most of this out
> of the box.  I think it's the best option to match your needs if you have
> the time and engineering to figure it out.
> 
>>From there you can go to the Acme/Covergence SBC platforms, the lower end
> Covergence will run in a VM or on your own hardware, but can handle most of
> what you are looking for.
> 
> Only thing on the list this doesn't include is the T.38 fax stuff, but since
> all of these would require separate media gateways anyway, that's the only
> place you need the T.38 supported, SER or the SBC would just pass the SDP
> along.
> 
> 	-Scott
> 
> -----Original Message-----
> From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org]
> On Behalf Of Jay Hennigan
> Sent: Friday, October 30, 2009 4:21 PM
> To: VoiceOps
> Subject: [VoiceOps] SIP routing engine - growing pains
> 
> Trying to pick the collective brain here!
> 
> Scenario:
> 
> We are a growing network service provider with ISP roots.  We got into 
> VoIP by selling outsourced hosted PBX services.  Merged with a company 
> doing early Asterisk deployment of hosted VoIP.
> 
> Now doing trunk replacement with Adtran TA9xx at customer premise.
> 
> PSTN connections are PRI trunks to a wholesale provider routed through 
> ah Atlas 550 to feed our Asterisk and Cisco 5350 SIP gateways, SIP 
> trunking and some offnet via outsources hosted PBX provider.  Recently 
> added local ENUM database server feeding the 5350s as dial-peers got 
> unwieldy.
> 
> Our ultimate goal is to migrate from the outsourced hosted provider to 
> our own Broadsoft platform or equivalent but we're not yet at critical 
> mass to make that financially viable.  We're presently peaking at about 
> 150 to 200 simultaneous calls busy hour through our own fabric plus 
> about that on the hosted PBX provider offnet.
> 
> What I'm looking for:
> 
> SIP routing engine and/or softswitch but don't need feature server. 
> Needs to do at a minimum:
> 
> * SIP routing based on destination number or pattern.
> * Registrar for remote Adtran TA9xx at customer sites.
> * Interface via SIP with 5350s for calls using PRI to PSTN.
> * Fax compatibility T.38/G.711 passthrough.
> * Support multiple SIP carriers inbound and outbound.
> * CDR generation.
> * Robust enough for solid performance - failover pair or load-balanced
> * Ability to grow to handle ~1000 simultaneous calls
> 
> Nice to have:
> 
> * LCRE based on time of day or destination pattern.
> * Geographic redundancy, located in multiple POPs.
> * NAT traversal B2BUA type functionality
> * IPv6 or at least a path to IPv6 functionality
> * Transcoding
> 
> Suggestions and/or recommendations?
> 
> --
> Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
> Impulse Internet Service  -  http://www.impulse.net/
> Your local telephone and internet company - 805 884-6323 - WB6RDV
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-- 
Alex Balashov - Principal
Evariste Systems
Web     : http://www.evaristesys.com/
Tel     : (+1) (678) 954-0670
Direct  : (+1) (678) 954-0671