Polycom RMX 1500 Administrator's Manual page 581

Table 15-14 System Flags – IVR Volume Control (Continued)
Flag
IVR_ROLL_CALL_VOLUME
The RMX must be restarted for modified flag settings to take effect.
Polycom RMX 1500/2000/4000 Administrator's Guide
Description
The volume of the Roll Call varies
according to the value of this flag.
Possible value range: 0-10 (Default: 6).
0 – disables playing the Roll Call
1 – lowest volume
10 – highest volume
Note: It is not recommended to disable
the Roll Call by setting the flag value to 0.
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