Question:  I have a Matrix +3 system using TEL-14s as IFBs for incoming calls, that works fine.  I would like to setup a similar function for outbound calls using the same TEL-14 port, I noticed that the outbound calls to the remote talent don't have a program feed associated with them.  Can this be setup on a Matrix +3 frame / TEL-14 IFB interface call?
Answer:  The program feed to the remote telephone IFB caller is only available on a inbound call to the TEL-14/M+3 frame.  This feature doesn't work on an outbound call from the frame / TEL-14 to the remote talent.  As a workaround the following steps can be followed that would allow the user to make a call from the frame out to the remote talent that will have most of the TEL-14 IFB functionality except for program dimming. 
The TEL-14 card set for telephone IFB mode can route a program feed to the TEL-14 card using a route attached to a control which can be placed on a panel key, this will allow the panel operator to toggle the audio feed off / on when the panel operator initiates an out bound call to the TEL-14. This will put a program feed on the out bound call and panel operator will be able to toggle this audio feed off / on with the control key.
Procedure to build route and control key:
1. From the M+3 setup screen click on the “attachments” tab. Click on the “Routes” radio button
2. Highlight one of the numbered routes and set checkmarks for “available” and “activate with talk”
3. Click on the Edit Source Destination button. This will allow the user to select a source and destination for the route. On the right hand side of screen select “interfaces” , this will show all available interface labels on the system. Highlight the audio program source and click the mouse pointer on the Source column on the left hand side of the screen, the label name should appear there.
4. Now highlight the destination label on the right hand side of screen and click on the Destination column on the left hand side of screen, the label name should now be visible there. Click on the “Apply” button and then click on the “End Edits” button. The route is now created but we are not done yet.
5. Click on the Hardware and Labels tab, then select the “Controls” radio button. Highlight one of the control labels (these can be renamed to something more meaningful) and set a checkmark on “available”, then click on “Apply”.
6. Open the Configure Menus, select the “Attachments” tab. Highlight the Control label configured in the Setup Menus. Then double click on the grey area on the left hand side of the work screen, it should turn white which means you are now in edit mode.
7. Click on the “all” radio button in the “select attachment to assign” panel. You should be able to see the route assignment that was created in steps 3 and 4 on the left hand side of the work screen. Highlight the route and click on it to move it to the right hand side of the work screen (attachments assigned). Click on the “Select New” button to return to the grey background. Then click on the “Apply” button.
8. The route is now assigned to the control label, this label will need to be assigned to a panel as a talk label on a blank key. This control label has no talk function, it only toggles the route on when activated. Once assigned to a panel when a operator initiates an outbound call from the TEL-14 and that call is received, the panel operator can key the control label “on” to send program audio out to the remote telephone destination. Since this is a manual toggle of the program out to the phone line there is no dimming feature associated with it as one would expect with an incoming TEL-14 IFB call in to the frame.