Polycom RMX 1500 Administrator's Manual page 605

10 For a gateway IVR Service, select the audio file for the following
message types:
Table 17-1 Conference IVR Service Properties - Gateway General Voice
Messages
Message Type
Enter Destination
ID
Incorrect
Destination ID
Dial Tone
Ringing Tone
11 When defining a gateway IVR Service, it is recommended that the
Roll Call option remains disabled.
12 Click the Video Services tab.
Polycom RMX 1500/2000/4000 Administrator's Guide
Description
Prompts the calling participant for the destination
number. Default message prompts the participant
for the conference ID (same message as in the
Entry Queue IVR Service).
If the participant entered an incorrect conference ID
(in gateway calls it is the destination number),
requests the participant to enter the number again.
The tone that will be played to indicate a dialing
tone, to let the calling participant enter the
destination number.
The tone that will be played to indicate that the
system is calling the destination number.
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