Howto:How to Configure Partial Rerouting
Partial Rerouting (PR) is an ISDN supplementary service.
It realizes a call diversion by the replacement of a call connection from a user-A to a user-B by a call connection from user-A to user-C.
User-A and User-C reside in the PSTN. User-B resides within an innovaphone PBX. User-B activated a diversion (CFU, CFNR) towards user-C.
Because of the fact, that the PSTN switch performs the diversion, the B-channels towards your local premises will become free.
The problem with the signaling of user-A’s CGPN towards user-C disappears.
When user-C’s phone rings, he can see, that he receives a diverted call, originally destined from user-A for user-B.
The charging is commonly handled as if PR would not be taking place. User-A pays for the connection user-A à PSTN-switch(user-B). The connection from PSTN-switch(user-B) à user-C is charged to user-B.
Applies To
This information applies to
- innovaphone PBX, V6
More Information
System Requirements
Innovaphone PBX with Trunk object.
Innovaphone Gateway
Subscription to the Partial Rerouting supplementary service. I.e. the ISDN provider must support and offer the feature, which is usually charged to the subscriber somehow
Installation
The following pre-conditions are assumed to be present: It is assumed that GW1 is configured as an H.323 registration towards a trunk object within the local PBX.
· Name: Trunk
· Mode: Register as Gateway
· Gatekeeper Address: 127.0.0.1
· Alias List/Name: Trunk
The number:name of the trunk object is:
· 0:Trunk
Calls from the PSTN are coming in via interface PPP.
The ISDN protocol of PPP is configured to EDSS1.
Configuration Open and edit the trunk object under PBX/Objects.
· Activate the Reroute supported checkmark.
· Click on OK.
Open and edit the incoming route from PPP towards GW1 under Gateway/Routes.
· Activate the Interworking checkmark.
· Click on OK.
The outgoing route does not need to be configured, in order to get this supplementary service working.
Known Problems
PR is just a term.
It can be requested on the protocol level by means of two different procedures, being used in an equivalent manner.
These procedures are: Call Deflection and Call Rerouting. The current implementation adapts the german PSTN behaviour:
BRI interfaces perform Call Deflection. PRI interfaces perform Call Rerouting. Please, ensure that your provider’s procedures perform equally.