Grandstream Networks GXV3240D Administration Manual page 50

No Answer Timeout (s)
Matching Incoming Caller ID
Distinctive Ring Tone
Upload Local MOH Audio File
Enable Local MOH
Firmware Version 1.0.1.54
Defines the timeout (in seconds) before the call is forwarded on no
answer. The default value is 20 seconds. The valid range is from 1 to
120.
Specifies matching rules with number, pattern or Alert Info text. When
the incoming caller ID or Alert Info matches the rule, the phone will
ring with selected distinctive ringtone. Matching rules:

Specific caller ID number. For example, 8321123;

A defined pattern with certain length using xand +to specify,
where x could be any digit from 0 to 9. Samples:
xx+: at least 2-digit number;
xx: only 2-digit number;
[345]xx: 3-digit number with the leading digit of 3, 4 or 5;
[6-9]xx: 3-digit number with the leading digit from 6 to 9.

Alert Info text
Users could configure the matching rule as certain text (e.g.,
priority) and select the custom ring tone mapped to it. The custom
ring tone will be used if the phone receives SIP INVITE with
Alert-Info header in the following format:
Alert-Info: <http://127.0.0.1>; info=priority
Selects the distinctive ring tone for thematching rule. When the
incoming caller ID or Alert Info matches the rule, the phone will ring
with the selected ring.
Click on "Browse" button to upload the music file from local PC. The
MOH audio file has to be in .wav or .mp3 format.
Note:
Please be patient while the audio file is being uploaded. It could take
more than 3 minutes to finish the uploading especially the file size is
large. The button will show as "Processing" during the uploading.
Once done, it will show as "Browse" again. Click on "Save" on the
bottom of the web page and "Apply" on the top of the web page to
save the change.
If set to "Yes", local MOH will be turned on. Users will need upload a
local MOH audio file so it can be played on the other party when the
user puts the other party on hold. The default setting is "No".
GXV3240D Administration Guide Page 50 of 83