In Avaya IXTM Messaging High Availability, VSN is designed to support up to how many SIP ports? admin 4 years ago In Avaya IXTM Messaging High Availability, VSN is designed to support up to how many SIP ports? A. 150 B. 100 C. 120 D. 220 Reference: http://www.esna.com/services/education/IX_Messaging_10_8/TOG/RH5_IXM_TOG/IXM_TOG_System_Requirements/IXM_TOG_System_Requirements.htm ← Previous question Next question →