Matrix SPARSH VP710, User Manual

Page: 614 / 1046

606 Matrix SPARSH VP710 User Guide
Shared Call Appearance
SCA allows users to share an extension which can be registered on two or more IP phones at the same time. For
more information on how to register accounts, refer to
“Account Registration” . If you want to customize multiple
DSS keys to associate with an account, refer to “Multiple Line Keys per Account” .
Any IP phone can be used to originate or receive calls on the shared line. An incoming call can be presented to
multiple phones simultaneously. The incoming call can be answered on any IP phone but not all. A call that is active
on one IP phone will be presented visually to other IP phones that share the call appearance. IP phones support
SCA using a SUBSCRIBE/NOTIFY mechanism as specified in RFC 3265. The events used are:
• “call-info” for call appearance state notification
• “line-seize” for the IP phone to ask to seize the line
SCA supports the IP phones barging in an active call. In addition, SCA has the call pull capability. Call pull feature
allows users to retrieve an existing call from another shared phone that is in active or public hold status.
If the call is placed on public hold, the held call is available for any shared party to retrieve. If the call is placed on
private hold, the held call is only available for the hold party to retrieve. You need to configure either the private hold
soft key or a private hold key before you place the call on private hold.
Using SCA Feature on the IP Phone
This section provides you with detailed information on using the phone in a SCA Hybrid Key System scenario. In a
SCA Hybrid Key System scenario, the status of the line key icon which associates with a shared line will change.
For more information on line key icon, refer
“Icon Instructions”.
You can do the following using the IP phone in a SCA Hybrid Key System scenario:
• Place calls
• Answer calls
• Place a call on hold
• Retrieve a held call