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GRANDSTREAM GXP21XX/GXV3140/GXV3175 SERIES PHONES 20-BD5320-00
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2011 GRANDSTREAM PAGE 18 OF 45
4.3 Shared Call Appearance Configuration
The Shared Call Appearance (SCA) feature allows the administrator to add multiple
locations to a given line. Any of the locations can be used to originate or receive calls.
When a call comes in to an idle line, all the provisioned locations for that line are alerted.
The first location to answer the call is connected to the originator. If the line is already
active in a call, only the active location is alerted.
A subscriber can originate calls from any of the configured locations. All other locations
are unable to originate calls until all calls are released.
It is recommended that the phone number plus an index (<phoneNumber>_<index>) is
used when provisioning the unique address of record (AoR) for each shared line. For
example: 2405551111_2. If a phone number does not exist, the MAC address plus an
index could be used (<macAddress>_<index>).
Application
Server
Bob's Phone Joe's Phone
Subscriber Bob's Profile
Configuration
Line/Port:/AoR 2405551111_1
Auth UserID: bobsmith
Auth Password: bobs
Subscriber Joe's Profile
Configuration
Line/Port:/AoR 2405552222_1
Auth UserID: joebrown
Auth Password: joeb
Shared Call Appearance
Configuration
Bob's 2nd Line
Line/Port:/AoR 2405551111_2
Shared Call Appearance
Configuration
Joe's 2nd Line
Line/Port:/AoR 2405552222_2
Bob's Line
Joe's Line
Figure 1 Shared Call Appearance Configuration
Figure 1 Shared Call Appearance Configuration shows that Bob and Joe each have two
lines and that Bob shares a line with Joe and Joe shares a line with Bob. The figure also
shows the applicable Subscriber Profile and Shared Call Appearance Configuration data
for subscribers Bob and Joe.
When Bob (2405551111) is called, Bob’s first line and Joe’s second line will ring. When
Joe (2405552222) is called, Joe’s first line and Bob’s second line will ring.
The following steps show how to configure both phones for this Shared Call Appearance
configuration.