Scalable and flexible, Sangoma’s NetBorder SS7 VoiP Gateways offer concurrent use of ISDN, SS7 CAS (R2), SIP, and SIGTRAN signaling protocols all in one package, eliminating the need for third party media gateway controllers or protocol converters lowering operation and maintenance costs.
Digium's quad span digital interface cards support 96 (T1 / J1) or 120 (E1) connections to PSTN trunks over four spans (digital circuits). Built exclusively for use with Asterisk and Asterisk-based communications systems, the quad span digital cards provide the best value in digital connectivity.
Yealink SIP-T23P features intuitive user interface and enhanced functionality which make it easy for people to interact and maximize productivity. Yealink HD technology enables rich, clear, life-like voice communications, outsourced management options, flexible deployment and third-party communications applications.