[asterisk-biz] "Class 4" SIP trunking / LCR platform

[Alex Balashov]

I wanted to take a moment to introduce the list to Evariste Systems' 
Canonical SIP Routing Platform (CSRP), a type of product that is not 
widely discussed here.

CSRP is for companies who want to offer wholesale or retail SIP trunking 
to end-user PBXs or to other providers, and need a high-performance LCR, 
rating and customer management platform from which to do so.

It crystallised out of several years of consulting endeavours to 
represent what we consider to be the best technical solution to a 
relatively narrow problem: high-performance wholesale SIP origination 
and termination routing, including advanced least cost routing (LCR) and 
flexible, real-time rating.

This is not a "new" product at all, it just hasn't been marketed as a 
standalone, off-the-shelf solution in the past.  It has been through 
more than a dozen substantive, high-volume commercial deployments.

Key features include:

- CDR accounting and on-the-fly rating.

- Flexible account and sub-account management.

- Concurrent channel/port limits set on the individual gateway level for 
both customers and vendors gateways.

- High-performance, database driven LCR engine that can search hundreds 
of millions of variable-length prefixes in milliseconds.

- Support for pre-paid credit and pre-paid balance reservation as a 
fraud protection measure.

- Inter/intra-jurisdictional (e.g. inter/intra-state) rate awareness.

- Integrated support for LRN-based routing using LNP dips over SIP (i.e. 
RFC 4694 style).

- Static trusted IP endpoints and registration + authentication fully 
supported.

- Fast failover routing through up to 30 vendors (outbound) and customer 
endpoints (inbound).

- Profit margin enforcement (i.e. LCR can be set to not return 
unprofitable routes based on the retail rate being charged the customer 
for this call, or routes that fail to realise more than a certain amount 
of per-minute profit).

- Distinct termination rate plans can be applied to every customer.

- LCR can pick from distinct group of vendors for every customer, i.e. 
so you can give premium routes to premium customers, and junk routes to 
low-paying customers.

- Web GUI with reporting and full rate deck import.

- The business layer completely decouples sell price from vendor costs, 
allowing user to adopt any pricing model they choose.

- For origination routing, last-resort failover to hosted 
voicemail-to-email element.

When talking here about larger-scale commercial service delivery 
platforms, the focus is usually on multi-tenant hosted PBX containers 
and Asterisk-based softswitch assemblies that offer rich Class 5-style 
subscriber features.  CSRP doesn't try to do any of that; it tries to do 
one thing and one thing well, and that is to address the needs of 
wholesale operators, CLECs and ITSPs who provide SIP trunking.  There 
are plenty of other good solutions routinely advertised here for the 
small to medium integrated service space, but we feel that CSRP 
specifically meets the needs of wholesale/resale without compromises in 
any other direction.

A lot of the technical architecture of CSRP has been influenced by the 
demanding requirements of customers who run dialer traffic, so there is 
a very heavy emphasis on high capacity and throughput.

More details can be found on our web site.  Please do not hesitate to 
give me a call or shoot me an e-mail if you think you might be 
interested in learning more!

Cheers,

-- Alex

-- 
Alex Balashov - Principal
Evariste Systems LLC
260 Peachtree Street NW
Suite 2200
Atlanta, GA 30303
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/