Owner's Manual

Chapter 22: Troubleshooting
163
You cannot change or delete contacts or groups that are managed by an administrator. Please refer
to the
Contacts on page 86 section and the Talkgroups on page 92 section for more details on
administrator-managed contacts and groups. You need to contact your PTT administrator to make any
changes.
Corporate-Only Subscriber
Your PTT administrator may have your PTT service restricted to have only corporate contacts and
groups. This means that only your PTT administrator can add, change, or remove contacts and
groups on your phone. Even though you cannot change or remove contacts or groups, you can still
make them favorites, add avatars, or set colors.
22.11
Cannot Hear an Incoming Call
If you cannot hear an incoming PTT call, your loudspeaker volume may be turned down or your phone
may be in silent mode. Please see the
Turning the Speaker On/Off on page 64 section to set the PTT
call volume. See the
Interaction with Silent or Sound Mode on page 65 section for more information
about interaction with your phone’s silent mode.
22.12
Cannot Send an Instant Personal Alert
If your phone is currently in “Do Not Disturb” (DND) status, you cannot send an Instant Personal Alert
(IPA). You are not able to receive a callback while in DND, so the PTT application does not allow you
to send an alert. To remedy this, change your presence status to “Available”. See the
My Presence on
page 78
section for details on how to set your presence status.
22.13
Changing My SIM Card
Your phone may contain a SIM card that lets you move your phone number from one phone to another
phone compatible with your mobile phone service and SIM card. If you replace the SIM card in your
phone with another that has a different phone number, the PTT application automatically erases your
PTT history and favorites and restores the contacts and talkgroups associated with the new number (if
any exist). After changing the SIM card, the next time you start the PTT application you are asked to
“activate” or re-register your phone with the PTT server to ensure that you subscribe to the PTT service.
Please see the
First-time Activation on page 24 section for information about registering your phone
with the PTT service.
22.14
Explanation of Error Messages
22.14.1
Loss of Data Network Connection
If the PTT application cannot communicate with the PTT server, it displays Offline in the status
bar or system notification, and your availability shows No Connection. For more information, refer
to the
My Presence on page 78 section. You cannot receive PTT calls or alerts, and you appear as
Offline to others after some time. You should ensure that you have a good signal on your phone.
If you perform any action that requires connection to the PTT server (e.g., outgoing call, change
self-availability, contact/group add/modify/delete, etc.), a Connection is unavailable
message is displayed for a few seconds. When the connection restores, you receive the
Connection is restored message.