The time-division multiplexing (TDM) interfaces are available in the product models (ASR-920-12SZ-IM
Customers who choose to integrate voice and data in multiple steps preserve their investment in a T1/E1 WAN interface since the Multiflex VWIC can be reused in packet voice applications
This failover maintains voice service for analog endpoints if the WAN link fails or you lose connectivity to the Cisco Unified Communications Manager
• Enhanced connectivity
the expansion slot supports future add-on options
Avaya IP Phone 9608 - 700480585 Refurbished Condition:Refurbished The time-division multiplexing (TDM) interfacesRefurbished to Like New Avaya IP 9608 SIP Desk Phone (PoE) Power available separately 9608 highlights: 3. 2" x 2. 2" monochrome display 3 pages of 8 buttons with dual LEDs (24 programmable keys), 4 softkeys, 4 way navigation cluster Fixed features include phone, messages, contacts, history, home, headset, speaker, volume, mute Wideband audio Built in full duplex speakerphone and built in headset interface Dual message waiting indicators Built in two