You should probably also take a look at Metaswitch, they fit very well into the Residential market (amongst others) and can scale very well. Building is possible but you'll need a lot more dev staff and time. Also you'd have to bring in another vendor to handle the SS7 side of things and then try to integrate. -Scott From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org] On Behalf Of Steven Putnam Sent: Monday, December 27, 2010 2:27 PM To: Voice Operators Subject: [VoiceOps] Scalable VoIP Feature Server for Whitelabeling If you were a CLEC and were interested in wholesaling managed VoIP services to the residential VoIP Provider market, what would you recommend for a Feature Server platform? Would you buy versus build, and if you were to buy, what vendors are the best bang for the buck in this niche? We are not looking for expensive enterprise-centric solutions from Broadsoft and Sonus, unless there are no more viable alternatives; for a commodity such as residential VoIP, cost is very much a concern, but it must also be massively scalable. Steve