Appendix
73
Appendix C. The LCD Messages Related To a Call
The followings describe messages displayed o n the LCD of an attendant station and the
wireless terminal in Talking Mode.
At the DKTU

1. NO RESPONSE

1) Description: After key system requests a call to the wireless terminal, if there is no
response from the wireless terminal, this message is displayed on the LCD of DKTU.
Called station: Power-off
Called station: Out-of-svc area
2. NO CHANNEL
1) Description: There is not enough system resource. If the message is displayed
frequently on the LCD of DKTU, the system should be installed more.
There is no available RF channel: WTIB side
The reas on is brought by WTIB.
All RF channels are fully used.
There is no available PCM Hi-way; MPB side
The reas on is brought by MPB.
3. INVALID
1) Description: When a station not subscribed is called. The reason is brought by MPB.
4. NO RESPONSE: STA xxx
1) Description: After key system requests a call to DKTU, if there is no response from the
wireless terminal, this message is displayed on the LCD of DKTU.
When a called DKTU does not respond;
The reas on is brought by MPB.
It is not applicable to attendant station.
STOP!
; The attendant station is not applicable for this case. When time-out is occurred, the call is
released.
5. RELEASED: STA xxx
1) Description: After key system requests a call to the wireless terminal, if there is no
response from the wireless terminal, this message is displayed on the LCD of DKTU.
When a called WHTU does not respond;
The reas on is brought by WTIB.

6. DESUB. Fail
1) Description: While the wireless terminal is desubscribed at the attendant station, the
desubscription processing is really failed in MPBCOMM, DPS or WHTU.