Siemens Enterprise OpenStage 40 SIP IP-phone is a great solution for people working in the permanent place. This model features a large display and easy setup of various protocols such as TDM, HFA and SIP.
SRR Technologies is the first of it''s kind SIP VoIP consolidated solutions system and services.
Pricing Starting at:
$ 99.99 a port
$ 1.99 a phone number
$ 0.99 per inbound voice circuit from the carrier