ext—extension to dial [DID with steering digit in this case (strictly speaking, extension of phone being monitored)]
Use this speed dial by pressing the associated line key.
The release note syntax: fnc=type;sub=stationname@$PROXY;ext=extension#@$PROXYvid=#
Where: vid=#—specifies the extension the sidecar key is associated with. By default, it is Ext 1.
For example, if you have a registered Ext 2 with another proxy server, and you want to monitor other lines from that new account, you'll need to add "vid=2". When Ext 2 registers, the SUBSCRIBE message is then sent.
Assign up to 8 regular speed dials without using Line Keys: