The CITEL / MCK 7000 EXTENDER (E-7000-RUM, E-7000T-RUM) NORTEL NORSTAR / MERIDIAN 24_Port are 24-port remote client devices. They are designed for branch offices and call centers with 13 or more employees per location. To deploy a Citel EXTender 7000 solution, install one or more units at each remote location, and a Citel PBXgateway II at the corporate office. EXTender 7000s work with leading PBXs and digital handsets over T1, E1, ISDN, PRI, frame relay, and managed IP networks. Both 7000 models include an FXO port that ensures easy 911 call locating, and survivability in case of WAN failure. The EXTender 7000T adds an integrated dual-port T1 interface. Enterprises with T1 or Ei lines will benefit from the local trunk line and intranet data transmission features. First, multiple channels can be allocated for use as local trunk lines. Any port on the EXTender 7000T can be configured to access the trunk lines when dialing the branch office’s local area. Voice traffic is sent over the WAN link only when voice features are invoked. This is especially beneficial in case of a WAN failure, when all calls must be routed through the PSTN.