Inter-tandem Transfer

Inter-tandem Transfer is 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.


 * NENA 02-011, NENA Data Standards for Local Exchange Carriers, ALI Service Providers &amp; 9-1-1 Jurisdictions
 * NENA 03-503, NENA SS7 Guidelines for Wireline and VoIP Emergency Services Gateway Interconnection to 9-1-1 Selective Routers
 * NENA 05-501, NENA Technical Information Document - SS7 Guidelines for MSC to Selective Router Connectivity