Voice (Unicast) Calls; Communication Hierarchy - Motorola CA50 Developer & User Manual

4 - 36 CA50/UCA Client & Server Developer & User Guide

Voice (Unicast) Calls

Voice (unicast) calls are initiated and controlled from the UCA client application running on the CA50 device. The
VoIP capabilities provide a means for initiating the call via an IP address or extension, depending on the protocol
chosen, and if the system set up requires PBX support.
Voice (unicast) calls are treated as a higher priority than walkie-talkie (multicast) communication. At initial login,
availability of the UCA server is required for voice (unicast) calls to function. For additional information, see
Capabilities with an Offline UCA Server on page
NOTE When the phone book is previously viewed from a CA50, it caches the last accessed phone book
information. If the UCA server is temporarily not accessible, then CA50 can access this cached phone
book information within the device itself.
Volume control of the output of a voice call is performed by a key press and can only be adjusted while in a voice
call. See Client Settings on page 9-40
NOTE For a detailed overview of voice (unicast) calls, see

Communication Hierarchy

On Voice (Unicast) Call
When a user is on a voice (unicast) call:
•
Walkie-talkie does not function. Incoming walkie-talkie voice is not played and Walkie-Talkie keys are
inactive.
•
When walkie-talkie scan mode is active before a voice (unicast) call, it is automatically re-enabled after the
voice (unicast) call ends.
•
When walkie-talkie single channel mode is active before the voice (unicast) call, it is automatically re-enabled
after the voice (unicast) call ends.
•
Business or other application notifications play based on the user profile configuration. Notification tones play
through the receiver. Any screen data related to the notification is displayed on the screen.
•
A second or additional incoming voice (unicast) calls do not come through and the caller receives a busy
signal when no PBX is involved. If a PBX is so configured, the second call could go to voice mail.
Off Voice (Unicast) Call
•
Incoming walkie-talkie activities play.
•
Incoming business or other application notifications play.
6-58.
for volume keys functionality.
Voice Call (Unicast) Functionality on page 1-3
CA50
.