Grandstream Networks, Inc.
GXP21xx User Manual
Page
17 of 41
Firmware version: 1.0.1.66 Last Updated: 05/2011
P
HONE
F
UNCTIONS
D
URING A
P
HONE
C
ALL
Call Waiting/ Call Hold
1.
Hold
:
Place a call on hold by pressing the “HOLD” button.
2.
Resume:
Resume call by pressing the corresponding blinking LINE.
3.
Multiple Calls
:
Automatically place ACTIVE call on “HOLD” by selecting another available LINE to
place or receive another call. Call Waiting tone (stutter tone) audible when line is in use.
Mute
1. Press the MUTE button to enable/disable muting the microphone.
2. The “Line Status Indicator” will show “LINEx: SPEAKING” or “LINEx: MUTE” to indicate whether the
microphone is muted.
Call Transfer
GXP21xx supports both
Blind
and
Attended
transfer. Also, users could make auto-attended transfer when
this feature is enabled from web GUI.
1.
Blind Transfer:
Press “TRANSFER” button, then dial the number and press the “SEND” button to
complete transfer of active call.
2.
Attended Transfer:
Press “LINEx” button to make a call and automatically place the ACTIVE LINE
on HOLD. Once the call is established, press “TRANSFER” key then the LINE button of the waiting
line to transfer the call. Hang up the phone call after “Transfer Successful” is displayed in the screen.
3.
Auto-Attended Transfer:
Users could enable Auto-Attended Transfer under Web GUI->Advanced
Setting Page. During the first call, press “TRANSFER” hard button and it will bring up another line.
The first call will be on hold. Enter the number and press SEND key to establish the second call (If
pressing soft key “transfer” after entering the number, it will do blind transfer instead). After the
second call is established, press “TRANSFER” hard button again. Now the phone will hang up and
the call will be transferred.
NOTE:
To transfer calls across SIP domains, SIP service providers must support transfer across SIP
domains. Blind transfer will usually use the primary account SIP profile.
5-Way Conferencing
GXP21xx can host conference calls and supports up to 5-way conference calling (Excludes GXP2100 which
supports up to 4-way).
1.
Initiate a Conference Call
:
Establish a connection with two or more parties
Press CONF button
Choose the desired line to join the conference by pressing the corresponding LINE button
Repeat previous two steps for all other parties that would like to join the conference. This
can be done at any time. However, if a new call comes in, the other calls will be placed on
hold and the host will have to individually re-join the held lines back into the conference by
repeating the previous two steps again
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