ADTRAN ATLAS 800PLUS - Manual (Page 104)

Chapter 5. Using the Terminal Menu
5-52 ATLAS _ 800 PLUS User Manual 61200226L1-1
Calls For User terminations, the number of calls is fixed at 2.
These options reflect what the Network has
provisioned for this SPID. If the BRI was purchased
with different services provisioned for the SPIDs, then
the call must match the services supported. D64
D56
Audio
Speech