GLV-540 User Manual
50
5.2.19
Call Return
Call Return feature facilitates initiating an outgoing call to the Caller of the last
incoming call.
For example
:
Consider an incoming call from caller A to current user (user 1) of IP Phone.
The incoming call may or may not be answered. Now if Call return is initiated
by user 1, then the phone will make an outgoing call to Caller A’s phone
number.
To initiate Call return,
o
When the phone is idle and on hook, press the Function Key (key
labeled “P1” )
o
Use the navigation key down to scroll down to “Call Return” and press
“Select”.
o
The phone will now initiate an outgoing call to the Caller of the last
incoming call.
Note:
o
Call Return can be initiated only by the default/current user.
o
Call to the last caller’s phone number will go through the SIP server
configured in the SIP account associated with user profile initiating Call
Return.
o
Call return will not function properly if the last incoming call was a peer-to
peer call.
5.2.20
DTMF Mode
GLV supports the following modes for transmitting and receiving DTMF:
o
In Band Mode
: - DTMF are sent in band
o
Out of Band Mode
: - DTMF are sent as RTP Packets with different
payload type as configured in DTMF Payload field.
o
Info Mode
: - DTMF are sent as SIP INFO Packets traveling along the
signaling path.
o
Auto Mode
: - DTMF transmission is selected automatically to in band,
Out Of Band or Info according to the remote ends capability
.
Note:
The DTMF Payload type to be used for out of band DTMF packets is
configurable through the Web. The payload type range is 96 to 127.
To use Out of Band DTMF on Speaker Mode, Configure “Debug Level” as other
than “Debug”.
