ADTRAN 1200305L1 system manual Ccitt G.723.1 compression 6.3 kbps bandwidth

Section 4, User Interface Guide ATLAS 550 System Manual

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.

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.

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.

178 © 2002 ADTRAN, Inc. 61200305L1-1F