Operation Manual

TD 92319GB
2006-09-22/ Ver. B
User Manual
Ascom i75 VoWiFi Handset
46
11 Operation Notice
11.1 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.
11.2 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 response
The called portable is unavailable “not registered”.
No Channel Available
This error code can appear the first two minutes a called handset is out of coverage or if
the battery is removed without turning the handset off.
Call Failed
Unable to contact the called handset.