Chapter 13-Conference and Participant Monitoring
Polycom, Inc. 13-33

Monitoring ISDN/PSTN Participants

Using the Participant Properties dialog box, you can monitor and verify the properties of an
ISDN/PSTN participant. The dialog box’s tabs contain information that is relevant to the
participant’s status only while the conference is running and is used to monitor the
participant’s status when connection problems occur.
Table 13-17 lists the audio algorithms that are supported for ISDN participants according to
their connection bit rate:
To view the participant properties during a conference:
1In the Participants list, right click the desired participant and select Participant
Properties.
Maximum line rate at which ISDN endpoints can connect to a conference is 768 kbps.
Table 13-17 Supported Audio Algorithms vs Bit Rate
Bit Rate
96Kbps
(and Lower) 128Kbps – 192Kbps 256Kbps
(and Higher)
Audio
Algorithm
G722.1 16K G722.1 C 32K G722.1 C 48K
G722.1 C 24K G722.1 C 24K G722.1 C 32K
Siren14 24K Siren14 32K G722.1 C 24K
G722 48K Siren14 24K Siren14 48K
G722 56K G722.1 32K Siren14 32K
G722 64K G722.1 24K Siren14 24K
G711 56K G722 48K G722.1 32K
G711 64K G722 56K G722.1 24K
G722 64K G722.1 16K
G711 56K G722 48K
G711 64K G722 56K
G722 64K
G711 56K
G711 64K