Trunk Group Use in ENUM

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Last updated 2009-10-26
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This document describes a method for incorporating trunk group parameters into an E.164 Number Mapping (ENUM) response for the Session Initiation Protocol (SIP) [RFC3261] service URI. It defines the use of trunk group contexts as defined in [RFC4904] as additional parameters in the E2U+SIP enumservice NAPTR record [RFC3403] URI.


Daryl Malas (
Tom Creighton (

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