Section 4, User Interface Guide ATLAS 550 System Manual
178 © 2002 ADTRAN, Inc. 61200305L1-1F
MODULES (VCOM-X) > STATUS > ALGORITHM
Read security: 5
Denotes the voice compression algorithm being used by the packet voice device. Any packet voice device
can use any available compression algorithm. When ATLAS 550 chooses a packet voice device for a
particular call, the voice compression algorithm is set to match the dial plan endpoint configuration. Refer
to the Frame Relay menu section of this manual for more information.
MODULES (VCOM-X) > STATUS > SILENCE
Read security: 5
Voice endpoints continue to originate frame relay traffic during periods of relative silence. The
ATLAS 550 expects to receive such silence frames; therefore, silence compression is DISABLED by default.
Some voice endpoints can be configured so that no silence frames are transmitted during periods of relative
silence. For compatibility with these devices, the ATLAS 550 can be configured to expect that silence
suppression is ENABLED; thus, no frame relay traffic is generated during periods of silence. Both voice
endpoints must agree on the silence suppression setting.
MODULES (VCOM-X) > STATUS > CONNECTION
Read security: 5
Helps identify a suspect packet voice device if a particular call reports poor quality. The displayed packet
identifier and the dial plan endpoint identify the call using this packet voice device.
MODULES (VCOM-X) > STATUS > FRAME TYPE
Read security: 5
Displays the kind of frame the ATLAS 550 receives from the frame relay endpoint connected to the
VCOM channel, allowing users to monitor the kind of data being carried on the network and processed by
the ATLAS 550. (The ATLAS 550 interprets the most-recently received frame from the endpoint.)
During a voice connection, the frame type displays as VOICE. For a FAX connection, a variety of frame
types display. Initially, VOICE displays indicating that although the call has completed, the answering FAX
machine has not yet announced its 2100 HZ tone. After completing the 2100 Hz, both FAX endpoints
repeat a V.21 cycle for each page of the FAX document.
N/A This device has not been assigned a voice compression algorithm.
G.723.1 CCITT G.723.1 compression; 6.3 kbps bandwidth.
NETCODER Proprietary NETCODER compression; 6.4 kbps bandwidth.
Some voice compression standards may be used only under specific licensing
arrangements due to existing patents. The ATLAS 550 provides complete management of
these licensed resources; therefore, users are not required to take additional steps to
ensure conformance with licensing provisions. For example, the ATLAS 550 manages its
resources so users never exceed the maximum licensed number of simultaneous
connections.