Mitel 430 - Transit Routing in the Private Leased-Line Network

Call routing
237
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
6. 7 Transit Routing in the Private Leased-Line Network
When a PINX forwards a call on the network side, it is a transit routing.
If a PINX routes a call from the public network to the private leased-line network or vice
versa, it assumes a gateway function. It therefore acts as the gateway PINX for the
call.
If a PINX routes a call from a PINX in the private leased-line network to another PINX
in the private leased-line network, it assumes a transit function. It therefore acts as the
transit PINX for the call.
In this chapter you will find out how MiVoice Office 400 resolves the gateway and tran-
sit function, and the settings required.
Note:
A transit call must never be routed from network to network via the same trunk group; otherwise
this may lead to endless loops and block all available B channels.
• TEI management P-MP (Point-to-Multipoint)
Trunk group configuration:
• Hold allowed in public network
(HOLD)
Activated
• Three-party in public network
(3PTY)
Activated
• Explicit Call Transfer (ECT) Activated
• Network type Public
• Protocol DSS1
• Trunk connections Group in the same trunk group all the basic accesses that are to support this
function
Parameter Parameter value