Meridian America Link/Customer Controlled Routing - Manual (Page 383)

Chapter 13: Meridian Mail configuration 365
Meridian Link Release 5C/CCR Release 3C Installation and Upgrade Guide
Table 138
Example of Meridian Mail Voice Service DN (VSDN) Table
DN Service Class
4567 VM
4568 MS
7650 ACC 1
VM = service type Voice Messaging
MS = service type Voice Menu
ACC = service type Meridian 1 Access