Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Music on Hold Wiring

Music on Hold Wiring

Music on Hold Wiring

I wanted to see if I could make an attempt at this with a cellphone constantly plugged in to its charger and playing royalty free music through the headphone jack. The wires would be stripped on the opposite end, or the appropriate adapter put in place. I just don't know where to connect it. Any help would greatly be appreciated!

The image is the same as the attachment.

FAQ799-4980: Music On Hold Wiring


RE: Music on Hold Wiring

yeah, i looked at that a couple of months ago when i first got the idea into my head and took a printout of the faq you linked to to the box. i couldn't figure out what was what. i hope this isn't a case of "you probably shouldn't be messing with it," as the process seems fairly straight forward other than the where does it connect part.

RE: Music on Hold Wiring

In the lower right corner of your image, you have two "columns" of 66 type connecting blocks.  Each "column" is made up of two 66-blocks.

I can see two amp cables coming out of the bottom of your CICS, which is what one would expect.  Generally, one is for the phones in your office to connect to, and one is where your outside lines tie in.  Your CICS shows only one line card, so you would have 4 outside lines at the most connected (maybe fewer).  Often, there are more than 4 office phones connected, so look for the block with fewest connections, and that is probably your block with outside lines (central office lines).  That block is also where you find your MOH connection.  A single 66 type block will have 50 rows, where row number one is at the top.  The first two rows are often called pair-1, and should follow a standard color code where they will be offset blue and white wires.  


Work you way down that block to find pair 23, Green/Violet, and you will connect to those wires for your MOH.  You would be best served to get a 66-punch tool or get a TESTAR connector to tap the connection (http://www.specialized.net/Specialized/TESTAR2-Siemon-Two-Wire-66-Block-Adapter-4090.aspx).  Be aware that 66 blocks do not do well with stranded wire and really need 22-26 awg solid copper punch with the right tool-- if you use a screwdriver or knife, you can damage the IDC connector and cause connection problems.

Also, be aware that you image shows some bridge clips, the metal clips that span the two center "posts" of the 66 block in some places.  This suggests you have what is called a split block, where the left two pins are electrically separate from the right two pins.  When you go to connect, make sure you take that into account.

As a double check, trace the cable from the block you are going to use back up into the cabinet with the cover open.  One connector will have an icon that looks like a telephone pole with some droopy wires, that indicates the amp for the outside line/MOH block.

Also, be aware, your phone may not match the required impedance of the auto circuit, so I make no promises of sound quality.

It is hard to tell from the picture, but I believe the block on the left is the one you will work on.

Hope this helps.  You can also search for a pdf of Nortel CICS Installer Guide for more help.

RE: Music on Hold Wiring

You need to program the system for MOH on hold if not already done.

RE: Music on Hold Wiring


Just curious, where does one find royalty free music on the cell phone? And what kind of plan do you have that would make that a economical choice?

RE: Music on Hold Wiring

The cell phone used would be the one that "the man" tried to issue me, but my phone is already better. This phone is deactivated.

Royaly free music is pretty easy to find with a google search. Most sources of this type of music will allow you to play it as you wish, but pay for the song. If you only need a few tracks, it is not a bank breaker.

Considering the only thing this phone (in airplane mode) will be doing is playing the songs over and over and nothing else, it has an advantage over a cd player or the like in these aspects:

I can connect it to the network and change tracks at any time from anywhere.

Ok, that's the only advantage I could think of, but it's easier than burning a new cd every time or hooking the MOH to something else.

Thank you all SO MUCH for all your help thus far. Missedit, your explainaton now makes the task seem a few more degrees of daunting than I originally planned, but I'd rather have alot of info than too little. You are correct about the setup, 8 phones on 4 outside lines.

I'll let you know how I fare should I proceed.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close