An interesting, and frustrating problem...
2 systems... both 1000M one being Rel 4.5 the other being 4.0. The systems have a tie route configured including anti tromboning (and herein lies the start of my problem).
Almost all call scenarios except 1 that I have identified works. The one that doesn't is as follows:
A call is presented to an ANALOG extension (On the Rel 4.5 system and digitals are OK). The analog initiates an inquiry call to an IVR system over the tie line using LSE1 ccts and on the Rel 4 system. The IVR then initiates its own inquiry call back over the same tie route to the attendant DN (ATDN).
IF then the original initiating extension announces the call to the attendant then hangs up, the call does NOT transfer, nor anti-trombone. In fact the incoming caller to the original extension is still sitting on that extension, and the hangup disconnect would appear to fail. The result being that when the original extension picks up, the incoming caller is still there.
In a blind transfer situation, there is no issue. Also there are no identified issues in the above call scenario when the transfer is to either digital or analog extensions.
The failure appears to be related to the anti-tromboning as when the ESN is modified so that the IVRs use an alternate route back to the originating node the announced call transfer is successful.
Our systems are not currently fully patched, but a check on whats missing says that except for some "complex transfer patches" relating to call pilot.
Only programming issue that I can see as a possibility (and I may be wrong ) is that the PNI in the RDB on both systems are different.
Any suggestions on this would be greatly appreciated.
Thanx
Hopefully the above explanation makes some form of sense.
2 systems... both 1000M one being Rel 4.5 the other being 4.0. The systems have a tie route configured including anti tromboning (and herein lies the start of my problem).
Almost all call scenarios except 1 that I have identified works. The one that doesn't is as follows:
A call is presented to an ANALOG extension (On the Rel 4.5 system and digitals are OK). The analog initiates an inquiry call to an IVR system over the tie line using LSE1 ccts and on the Rel 4 system. The IVR then initiates its own inquiry call back over the same tie route to the attendant DN (ATDN).
IF then the original initiating extension announces the call to the attendant then hangs up, the call does NOT transfer, nor anti-trombone. In fact the incoming caller to the original extension is still sitting on that extension, and the hangup disconnect would appear to fail. The result being that when the original extension picks up, the incoming caller is still there.
In a blind transfer situation, there is no issue. Also there are no identified issues in the above call scenario when the transfer is to either digital or analog extensions.
The failure appears to be related to the anti-tromboning as when the ESN is modified so that the IVRs use an alternate route back to the originating node the announced call transfer is successful.
Our systems are not currently fully patched, but a check on whats missing says that except for some "complex transfer patches" relating to call pilot.
Only programming issue that I can see as a possibility (and I may be wrong ) is that the PNI in the RDB on both systems are different.
Any suggestions on this would be greatly appreciated.
Thanx
Hopefully the above explanation makes some form of sense.
