5years&counting

This is definitely a strange one. I ran across it a while back, and ended up abandoning the configuration because I wasn't able to resolve the problem. The tenant is now requesting the configuration again, so I need to find a fix.

Here's the situation:

CS1000E 5.0 with Call Pilot 201i 5.0. Tenant services enabled on CS1000E.

Call comes in on the Tenant's COT (ground-start trunk). The call normally rings in on the Tenant's 3904, but the 3904 is forwarded to Call Pilot for after-hours call handling.

Call Pilot uses an SDN to send the call to an application (auto attendant). Option 1 in the application transfers the call to an ACDN that sends the call to 9555-1234, which happens to be a Verizon Wireless cell phone.

The call rings out to the cell phone without any problem. If answered by the cell phone user, the call functions and transfers normally. If the call RNA to the cell phone's voicemail, the voicemail greeting, beep, etc. works fine, and the caller leaves a message and then hangs up (no digits pressed to complete the message, mark it as normal/urgent/private, or to send...the caller simply hangs up). The message is not retained by the voicemail, as if the message was never left. This problem has been duplicated on numerous Verizon Wireless cell phones.

If the ACDN is changed to send the call to a different number, that happens to be a T-Mobile cell phone, this problem doesn't occur. The message-cancel digits on Verizon Wireless voicemail and T-Mobile voicemail are different.

If a call is placed from an internal DN (Tenant 0...different than the Tenant's group) to the DN that is forwarded to Call Pilot, the call functions normally and the message is retained by the wireless voicemail.

My assumption is that this configuration is, for some reason, causing trailing digits to be outpulsed to the cell phone voicemail after the caller hangs up, and those digits happen to be the message-cancel digits for Verizon Wireless.

My question is two parts:

1. How do I trace digits being outpulsed?

2. What is causing this problem, and what can I do to resolve it?

Thanks!

Justin