Personally I don't see the need - but -?
There are two options that could work for this.? One is to use the wireline input and use analog for your voice announcement.? The other is to use a surplus DIU to vocode the announcement and inject it that way via V.24.? In either case I would recommend setting the wireline as lower-priority than repeat so it won't step on users and keep the CWID enabled for compliance in case a voice ID is missed.? The audio source for these announcements could be just about anything - from a raspberry PI (with a sound card) to a regular repeater controller.? The DIUs have come down in price significantly and can be had for under $100.? They are very handy for a number of applications also including audio logging/streaming.? This assumes you are running a Motorola Quantar or GTR 8000 and have a wireline card with the V.24 Daughter board.? If you don't they are widely available for reasonable prices.
Dan Woodie, CETsr
