User guide
 System Administrator’s Guide – Release 7.5 
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Toll Free 1-866-ALLWORX • 585-421-3850 • www.allworx.com 
Revised: April 9, 2013 
Page 211 
32 Music on Hold 
The system provides Music on Hold to callers in queues, calls held on phones, and 
parked calls. The Allworx Server Administrator can configure multiple sources and play 
different music to different callers. 
32.1 Sources 
Music can come from a Line In source or from electronic files stored on the Allworx 
server. To use a Line In source, consult the installation guide for your Allworx server. 
Download the installation guides from the Allworx Partner Portal 
(
www.allworxportal.com). 
32.2 Electronic Files 
An electronic hold music file is available on the system. If a different style or a site-
specific music track is desired it can be imported onto the Allworx server. As with other 
system audio (e.g. Auto Attendant greetings), files must be Telephony, raw, mu-law (u-
law), mono, 8-bits per sample, 8KHz sample rate. To convert other formats into the 
required format for the Allworx server, see File Format Conversion on page184. Name 
the files in the following format: 
moh_n_m.snd, where 
'n' is a number between 1 and 30. This number must be unique among the music on 
hold files on the system. If importing a Music on Hold file that duplicates the number ‘n’ 
of a file that is already on the system, the system deletes the existing file. 
'm' can be a user defined string that uniquely identifies the file. Valid characters include 
('A'-'Z'), ('a'-'z'), ('0'-'9') and underscore. 
For example, the file name could be "moh_1_sales.snd" or "moh_2_service.snd". 
To import the files onto the system, see Importing Greetings and Messages on page 
187. 
The default music file provided on the system is: “moh_supplied.snd”. 
The playback of music on hold files repeats as long as there are callers on hold. 
32.3 Converting Sound Files 
See File Format Conversion on page 184, for a procedure for converting sound files to 
the format required by the Allworx server. 
32.4 Managing Music on Hold 
Music on Hold is managed on the Phone System > Music on Hold page.  
The File Statistics section displays the memory allocation for imported music files. The 
Music on Hold Sources section displays individual file details. In addition, it enables 










