Polycom T1/PRI Module for VSX 8000 and 7000e series. Includes one 20ft/6m PRI cable (with clear conn

Your Cost: $3,099.00  $2,631.15

• For an outgoing call, the system uses the first active and available channel starting with the lowest number from the channel range (1-23 for a PRI T1 . If an additional channel is needed, the system chooses the next incremental number. For example, if channels through 7 are inactive, but 8 is active and available, then 8 is the first channel that can be used by the system to place an outgoing call. If an additional channel is needed, the system will use the next available active channel in the range (which could be 9, and so on). Incoming Calls. For incoming calls, the system may use the highest numbered channel in the range and, if needed, proceed to the next channel number in descending order, depending on the type of third-party equipment attached to the system. For example, an incoming call arrives on channel 23, then 22, 21, and so on. Dedicated full PRI T1 Line. All channels should be active for a full T1 line dedicated to your system. Fractional PRI T1 . Channel selection should be handled by your PRI network administrator.