HP 480-0005-00-15 manual Trunk Circuit Originated Calls, Intra-trunk Routing Hairpinning

Chapter 1: Overview

Trunk Circuit Originated Calls

A call coming from a Trunk Circuit may be switched to either the data network as a VoIP call, a Line Circuit, or trunk typically for connection to a termination device on the users premises such as a PBX. The routing decision made by the Tenor CMS is based upon your configuration and the dialed number.

Figure 1-3Trunk Circuit Call Routing

PSTN A

Trunk

Circuits

Line

Circuits

Circuit

Call

PBX

			Circuit
			Call
		Trunk
	QUINTUM QUINTUM	Circuits
			PSTN B
Tenor CMS		Ethernet	VOIP Call
		(IP Network)
			Ethernet

Intra-trunk Routing - “Hairpinning”

As a result of intra-trunk routing, incoming calls from a particular Trunk Circuit are switched by Tenor CMS to be routed back out the same trunk circuit routing group.

Figure 1-4Intra-Trunk Routing

Line

Circuits

Circuit

Call

PBX

QUINTUM QUINTUM

Tenor CMS

PSTN A

Trunk

Circuits

Circuit

Call

Trunk

Circuits

PSTN B

Ethernet	VOIP Call
(IP Network)
	Ethernet

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