Avaya 1616-I Text and Global (700458540, 700504843) IP Phone Analog Terminal Adapters The AV2 has a built

The AV2 has a built in internal power supply

The 4200890E2 is the special version of the Adtran NetVanta 4305 that comes with the Enhanced Feature Pack

Rolm Rolmphone RP624SL

Integrated Ethernet Switch (10/100 Mbps)

Avaya 1616-I Text and Global (700458540, 700504843) IP Phone Analog Terminal Adapters The AV2 has a builtAvaya 1616 I (700458540) Phone Description: The Avaya 1616 I (700458540) IP Phone is an executive level phone just like the 1616; however, the Avaya 1616 has been discontinued and replaced by the Avaya 1616 i. The Avaya 1616 I is compatible with Avaya Communication Manager 3. 0 or Avaya IP Office 6. 0 and later versions of both, whereas the regular 1616 would accept lower versions of the IP Office. The Avaya 700458540 has 16 programmable line or