1062 Matrix PRASAR UCS System Manual
Shared Call Appearance
What is this?
Shared Call Appearance (SCA) allows Standard SIP Phones that are registered with PRASAR UCS at different
locations with the same address/number, to get notification on call states of the call appearance(s) shared by them.
Whenever a call is made or received from a shared call appearance, PRASAR UCS sends each SIP Phone sharing
the call appearance(s), a notification on the state of the call appearance. Through these notifications, each user
sharing the same address/number can know the current state of the call appearance and act accordingly.
PRASAR UCS supports and displays the following call states for a shared call appearance on the SIP phones:
• PRASAR UCS supports SCA as per the Broadsoft SCA feature Specifications.
• PRASAR UCS supports this feature only on Standard IP Phones.
• Standard IP Phones may differ in the type of indication (LED color and cadence, text message display)
they provide for the Call States. Refer to the manufacturer’s documentation for SCA indication
supported on the phones.
• Calls put on 'Consultation Hold' from Location -1 of SIP Extension (binding -1), the SIP Extension
registered at Location-2/3 (another binding) can not retrieve that call.
How it works
PRASAR UCS supports up to 10 call appearances on SIP extensions. The number of call appearances that will be
shared by the SIP Phones will depend on the number of call appearances you have configured for the SIP
extension.
To provide SCA to the Standard IP Phones registered with the same ID, the Shared Call Appearance check box
must be enabled in the SIP Extension Settings of PRASAR UCS.
On the Standard IP Phones, make sure you have configured as many call appearances as allowed on the SIP
extension by PRASAR UCS and configure the corresponding number of CA keys.
State Meaning
Idle When the call appearance is free.
Seized
When the call appearance is been seized from any User binding using the line-
seize subscription.
Progressing
When the User has generated a call using the call appearance and the called
destination is ringing.
Ringing When the call is received on the User at the call appearance.
Active When the call of the User at the call appearance is in matured state.
Held
When the call at the call appearance of the User has been put on public hold
from the User binding.
Held-private
When the call at the call appearance of the User has been put on private hold
from the User binding.
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