[Asterisk-Users] MOH from RCA jack?

[Kristian Kielhofner]

Rich Adamson wrote:
> Been around asterisk for two-plus years, but need a little input from the
> list on this topic.
> 
> Have a potential client that wants to replace their old key system with *,
> but they want to integrate a commercial message service (they pay a monthly 
> fee to have special MOH messages generated) into their system. The messages 
> are essentially delivered to this customer via older generation audio 
> equipment that interfaces to their key system via a standard audio RCA jack.
> (We're reseaching other alternative deliver mechanisms such as mp3's, etc, 
> from the supplier, but have to assume for now that we need to inject MOH 
> audio into asterisk via this RCA jack.)
> 
> Does anyone have a relatively high audio quanlity method of interfacing 
> such an external audio device into asterisk in a reliable way via an
> RCA jack?
> 

Rich,

	First, you will need an RCA to 1/8" cable from Radio Shack or 
something.  Next, you will need a sound card in the machine.  USB audio 
interfaces are cool too (and they usually have a high SN ratio).

	Then you need to setup a custom MOH class and use arecord:

http://linuxcommand.org/man_pages/arecord1.html

	I haven't done this, but I was intrigued by your question and thought 
I'd look into it.  Let us know how it turns out!

--
Kristian Kielhofner