Is Bell South walkie talkie compatiable with other

I believe for the FR60 walkie-talkies, if they are not sending or receiving, the issue could be related to the antenna, battery, or internal components. You can try replacing the batteries and/or antennas to see if that resolves the issue.

As for the T5820 walkie-talkie, if the rubber on the antenna is broken, it's likely that the antenna itself is also damaged. In this case, you can try replacing the antenna with a new one. Antennas are typically available for purchase online or at electronics stores.
In terms of cost, repairing older walkie-talkies like these may not always be cost-effective. If the repairs are extensive or require replacement of major components, it may be more practical to purchase new walkie-talkies instead.
Below are options of the options of walkie-talkies you can buy;

No. Your Talkabout radio operates on UHF and your wife's walkie talkie is a VHF radio operating on exclusive business frequencies.

Kerri

The kebt-650 appears to be a replacement batter for the Motorola Solutions MU and MT Talkabout walkie talkie series.

Contact Motorola Solutions Get Support

Mark
Motorola Mobility Support

You might try http://wirelesspro.com, we have found them to carry most TalkAbout accessories and batteries. Before ordering battery packs, you might try switching your existing good battery to the other radio and see if it solves the problem. This would assure you that it is indeed a battery problem.

Not all Motorola FRS radio models use the same designations for a give frequency or tone. You may have trouble talking with models different from your own...

Program your existing walkie talkie to a common frequency with no PL code turned on and listen for activity. If you are using a TalkAbout or other FRS radio you should hear activity on one or more channels if you are in a city.
Best regards.

go motorola web site

http://www.motorola.com/mdirect/manuals/T48-T49_UserGuide.pdf

http://www.theusermanualsite.com/manuals/mfg/motorola/motorola_twoway_radio_product_list_4.html

You will find the manual here. The radio is part of the 280 series radios, so there is a general manual on all in that series.