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● MUTE: Mute the voice of MIC and let others can’t hear from user in communication.
● PSTN: Press PSTN to switch SP5100 IP Phone as PSTN or IP Phone Mode. In
PSTN mode, “PSTN” characters will be displayed on LCD left bottom side, then
users can dial out as if standard telephone set in PSTN; in IP Phone mode, “GK”
characters will be displayed on LCD left bottom side.
Note:
1. When IP Phone is in PSTN mode, only PSTN and SPEAKER function key can work.
2. On LCD will display”….Incoming Call…. ” to notice user when IP Phone has both IP
and PSTN side incoming calls.
3. If in communication with IP side, user can press HOLD to hold IP side, then press
PSTN to pick up PSTN side, after that can press HOLD again to retrieve IP side.
4. If in communication with PSTN side, user must hang up PSTN side before pick up IP
side.
● HOLD: To hold a call with H.450 function.
● SPEED: Press SPEED and number (Phone book index) to do speed dial according
to phone book data (please refer to LCD configuration-Phone Address Book or
Advanced Configurations via Telnet-[pbook] command).
● FORWARD: Forward a incoming call to another IP device by H.450 forward
function.(please refer to LCD configuration-Indicate Forward Type)
● MESSAGE and its indicated LED light: When missing the incoming calls, the
message LED will be flashing. User can know the information of miss call by
pressing the message button.
● TRANSFER:
1. Transfer a call by H.450 transfer function. Press TRANSFER button in
communication and press phone No. which user want to transfer to can transfer this
call.
2. Change characters to be capital or lowercase: when press TRANSFER before
press letters can switch type of letters.
● REDIAL: Redial the last outgoing call.
● + and - : Adjust the voice volume in communication.
● SPEAKER: Speaking without picking up handset.
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