Motorola DTR radios can be programmed with channel and radio ID's, pre-programmed text messages, and private groups. All you need is a DTR650 programming cable for your PC and free software from Motorola. You can also use a mini-keyboard that attaches to your radio. The DTR User Manual provides instructions on how to set up groups, all call, and individual contacts.
Follow our link to a step-by-step guide to remotely add/update a DTR radio contact.