Aastra 6751i SIP Phone (A1751-0131-10-01) Power::Power over Ethernet and YY741 stacking modules are

and YY741 stacking modules are supported by the switch

The 3Com NBX 3106 keeps a user on the IP network and allows for access to specific feature keys such as various line keys

WIC-1DSU-T1

by combining the bandwidth of multiple DS1 or E1 links into groups that collectively provide higher intermediate rates

The NetVanta 4305 supports additional features such as a stateful inspection firewall

Aastra 6751i SIP Phone (A1751-0131-10-01) Power::Power over Ethernet and YY741 stacking modules areAastra 6751i SIP Phone 51i A1751 0131 10 01 Description: The Aastra 6751i IP phone (MPN: A1751 0131 10 01) is a SIP protocol based phone. The Aastra 6751i has been built as a cost effective phone for light phone users. Ideal for a lobby, a quiet office desk, or anywhere phone capabilities are needed, the Aastra 51i offers a wealth of features for the average user. Offering a simple LCD screen, the 51i can display Caller ID, and other context sensitive