Grandstream Networks GRP261X Administration Manual page 77

Settings  Programmable Keys  Virtual Multi-Purpose Keys
Mode
The default setting is "Toggle".
Assigns a function to the corresponding line key. The key mode options are:

None

Default
Regular line key to open up a line and switch line. The Value field can
be left blank.

Shared
Share line for Shared Line Appearance feature. Select the Account
registered as Shared line for the line key. The Value field can be left
blank.
Note: Users can either show or hide VPK shared line display description,
This only can be done with provisioning using the Pvalue P8484 (Value
= 0; No . Value = 1; Yes)

Speed Dial
Select the Account to dial from. And enter the Speed Dial number in the
Value field to be dialed, or enter the IP address to set the Direct IP call
as Speed Dial.

Busy Lamp Field (BLF)
Select the Account to monitor the BLF status. Enter the extension
number in the Value field to be monitored.

Presence Watcher
This option has to be supported by a presence server and it is tied to the
"Do Not Disturb" status of the phone's extension.

Eventlist BLF
This option is similar to the BLF option but in this case the PBX collects
the information from the phones and sends it out in one single notify
message. PBX server has to support this feature.

Speed Dial via active account
Similar to Speed Dial but it will dial based on the current active account.
For example, if the phone is offhook and account 2 is active, it will call
the configured Speed Dial number using account 2.

Dial DTMF
Enter a series of DTMF digits in the Value field to be dialed during the
call. "Enable MPK Sending DTMF" has to be set to "Yes" first.
GRP261x/GRP2624/GRP2634 Administration Guide
Version 1.0.5.48
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