Instruction manual
Page 1564 of 3156 Flexible Voice/Data Terminal Number
553-3001-306 Standard 10.00 January 2002
Dynamic voice/data Terminal Numbers (TNs) have two Directory Numbers
(DNs) to place and receive calls. The primary voice DN is assigned to key 00
on the telephone. Another key is assigned to the data DN. This key is
designated as the data mode key. All data calls are placed and received via
this key. Any other secondary DN keys assigned to a dynamic voice/data TN
can place and receive voice calls only.
With the static capabilities of this feature, each B-channel on the set is
configured as either voice or data. This provides the opportunity for two voice
or two data B-channels on the same TCM loop. This configuration doubles
the density of the digital line card (XDLC). Since the TN has either a voice
or data Class of Service, calls placed from any DN key on the set are either
voice or data.
Operating parameters
There are no restrictions against placing data calls on hold.
When a Terminal Number (TN) is in the voice mode, the short hunting feature
is terminated when a Data Mode (DTM) key is encountered.
Data calls to a dynamic voice/data TN are not redirected. All TN redirection
features such as Call Forward All Calls and Hunting are applicable to voice
calls only. If a data call is not presented to the DTM key the call is given
reorder tone.
A Data Mode (DTM) key can be assigned to M2000 series Meridian 1
proprietary sets with the exception of the M2006 set.
Data Directory Numbers (DNs) for dynamic voice/data TNs cannot have
Multiple Appearance DNs (MADNs).
A dynamic voice/data TN can only have one data DN.
No audible progress tones, such as dial tone or ringback, are provided for data
calls to or from dynamic TNs. Only Time Compression Multiplexing (TCM)
progress messages are sent for data calls. Audible progress tones are provided
for voice calls.