Avaya Definity TN570D Expansion Interface (Refurbished)

Avaya Definity TN570D Expansion Interface (Refurbished)Avaya Definity TN570D Expansion Interface. More Information Provides interface between the TDM bus and packet bus, and fiber optic links interconnecting cabinets Used in a Port Network (PN) between a PN and another PN in a direct connect system, and between a PN and an SNI in a switch node carrier in a CSS connected system Provides control channel applications and time slot interchanging between the PPN and EPNs Used when ISDN BRI and or ASAI is

The Comdial Executech II 6700S is a speakerphone that works for Comdial Executech II Systems

8 lines by 16 stations phone system

Part# 9109-006-000

The NEC 80573 is a dependable digital business desk phone designed for NEC communication systems

Serial interface module (necessary for SMDR

this phone provides essential call handling features and long-term durability

If PIOU installed

belt clip and user guide

Two Superset PKM48 devices can be attached to compatible Superset 4000 series phones to provide up to 96 additional keys

Hands-free conversation for increased productivity

The Avaya Definity 7406 D07 Plus Phone has a 48 character LCD for access to the messaging features of your system and provides for the message retrieval and storage

Includes 4 telephone CO lines