Direct from the horses mouth (Nortel)Hope you find it useful
Disable Voice Service Card on the PBX in LD 32 (DISC), remove Voice Service Card from the PBX and then re-seat it.
Stop Voice Service Monitor Service, de-acquire voice ports in SECC, delete phonesets (for the voice ports that were de-acquired), and re-enter the phonesets, ensuring to check the "add voice port" as each is created. Using the following format is required when creating phonesets for voice ports - Telephony Address, example - 6-0-0-0 (do not use 6-0 or 6-0-0), acquired voice ports in SECC.
Stop the VS Monitor Service on the SECC, delete the Voice Service Card from the SECC under Voice Services Configuration (ensuring to write down the keycode and exact details listed for the VS Card), create the VS Card again (with exactly the same information), complete the Voice Service Card Import, and start the VS Service Monitor Service (all voice ports logged in after approximately 3 minutes).