Toshiba DK 用户手册

▲

▼

Microphone Sensitivity

On-hook/

Off-hook

While pressing, 
hold 

0LF

 and 

9RO

▲9RO▼

 for three 

seconds.

The Mic LED flashes about six times 
while setting the sensitivity. When the 
microphone is set for the lowest or 
normal sensitivity, the Mic LED lights 
steady when the telephone is busy on a 
speakerphone call.

Handset/Headset Call 
Waiting Tone

On-hook/

Off-hook

While pressing, 
hold 

5HGLDO

 and 

9RO▲

The tones are received over the 
handset/headset and speaker.

On-hook/

Off-hook

While pressing, 
hold 

5HGLDO

 and 

9RO▼

The tones are received over the 
speaker.

Muted Tone Burst

Tone sent for Busy or DND 
Override, Call Transfer 
with Camp-on, etc.

On-hook

[DN] followed by

 then

9RO

▲

/

9RO

▼

 

You hear the muted tone for 15 seconds 
or until disconnected by pressing 

6SNU

.

Ringing, Handsfree 
Answerback, and Speaker 
OCA.

On-hook

 followed 

by 

9RO

▲

/

9RO

▼

 

Your phone rings for 15 seconds or until 
disconnected by pressing 

6SNU

. 

Enables you to check if you can hear 
ringing at a distance from your 
telephone.

Speaker

On-hook, 

idle

[DN] followed by 

9RO

▲

/

9RO▼

After you press a [DN], you hear dial 
tone. 

Adjusts Internal and CO Dial Tone, 
Background Music.