User's Manual

Table Of Contents
PRELIMINARY
TD 92319GB
2005-10-20/ Ver. PA11
User Manual
i75 Cordless IP Handset
40
10 Operation Notice
10.1 Accessibility and Voice Quality
The base network is not always available. If you do not get in contact with your system,
contact your system administrator.
For various reasons, some functionality in the system may be inaccessible, causing various
status texts to appear.
No System
When you leave the system's coverage area the text “No System” will appear in the
display. Additionally, a parameter can be set to enable a short beep to sound when the
message is shown.
Note: When re-entering the coverage area it can take a couple of minutes before the
handset automatically has registered into the system.
It is also possible to get an out of coverage warning signal by setting a flash memory
parameter.
No Access
If the handset has found the system but for some reason cannot connect to it, the text
“No Access” is shown.
Voice Only
If the handset is unable to connect to the IMS, messaging will not be available and the text
“Voice Only” will be shown.
Messaging Only
If the handset is unable to connect to the gateway, voice calling will not be available and
the text “Messaging Only” will be shown.
10.2 Error Codes
When the base network is available a call may sometimes still fail. In such cases, the error
code shown indicates the reason for the failed call.
No Channel Available
All channels in the VoWLAN access point are taken.
Call Failed
Unable to contact the called handset.
Busy
The person being called is already engaged in another call, or has declined your call.