Verizon Business’ Session Initiation Protocol (SIP) trunking services have been rated compliant with key Avaya IP telephony solutions. Specifically, Verizon Business SIP trunks have been tested by Avaya for compatibility with Avaya Communication Manager 3.1, an IP telephony application, and with Avaya SIP Enablement Services 3.1, a standards-based communications architecture that bridges the public switched telephone network and the Internet.
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