Inter-Tandem Transfer

Definition:

The capability of transferring a call over the 9‐1‐1 network from a PSAP served by one 9‐1‐1 tandem to a PSAP served by

a different 9‐1‐1 tandem.

Routing ESN

Used by the 9‐1‐1 Tandem switch office to properly route a 9‐1‐1 call. The routing ESN will change whenever the emergency services for the area...

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Fixed Transfer

A feature which enables a PSAP attendant to transfer incoming 9‐1‐1 calls to secondary PSAPs by activating a single button.

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PSAP, Secondary

The Secondary PSAP receives emergency calls from the 9‐1‐1 network only as a result of a transfer. The Secondary PSAP never receives first routed...

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Alternate PSAP

An Alternate PSAP is designated to receive 9‐1‐1 calls if the call cannot be delivered to the primary PSAP.

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