The time-division multiplexing (TDM) interfaces are available in the product models (ASR-920-12SZ-IM
These units are meant to be controlled via a Cisco Wireless Lan Controller **
The Cisco® Unified IP Conference Phone 8831 enhances people-centric communications
and Power over Ethernet (PoE+) connectivity in places where space is at a premium
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
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