Have a peek at the averic.avd file on your Unity system. That's where the serial packets for Ericsson are defined. The 83... packet for example should indicate an incoming forwarded call while the 89... packet tells Unity that the call has been disconnected.
So why are these showing up as INVALID? I believe it this the $CHANNEL field that is off. Earlier in the file $CHANNEL is defined as a 2 digit field. Looks like your PBX is sending three digits for whatever reason. You could try changing this to 3 digits, save the file and reboot Unity.
Here's the line that defines the field length...
$CHANNEL= 2, CHANNEL
That said, it is a bit worrisome if you're having to change this. That hasn't been changed since the beginning of time. I wonder if this is a configuration thing on the PBX side? i.e. is there some setting that controls the number of digits used for the voice channel field? If so, this might be good information for Cisco to include in the Unity Integration Guide.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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