We've got a QSIG PRI between an Avaya Definity and Cisco CallManager via a 2811. All PSTN connectivity is through the Avaya. We're finding that when a call comes in, either from the PSTN or from an Avaya extension, to a Cisco phone, and that phone is not answered and goes to voicemail, about 5% of the calls go to the greeting in Intuity saying to please enter the extension that you called, as if it didn't received the called number. The other 95% work just fine, and the caller hears the subscriber's greeting.
We're doing path replacement over the PRI. Always Forward Switch Voicemail Calls is set to true. Forward by Reroute is true. Include Original Called Info for Q.SIG Call Diversions is set to Always. Include Voice Mailbox Address in QSIG Call Diversion APDUs is set to false. Path Replacement Enabled is true. Path Replacement on Tromboned Calls is true.
CCM version is 4.1(3)sr2.
2811 IOS is 12.3(11)T8 SP Services
Avaya Communications Manager release 2.2.2
Anybody run into this before or have any ideas?