Shared Call Appearance
Introduced in SIP Server version 8.1.101.57, Shared Call Appearance (SCA) enables a group of SIP phones to receive inbound calls directed to a single destination (shared line); that way, any phone from this group can answer the call, barge-in to the active call, or retrieve the call placed on hold.
The call flows in this section describe the functions and events related to SCA functionality:
Note: Subscription to other T-Library events is required to see actions on the calls and for Barge-in/Retrieve functions. The T-Library client must not allow to send 3pcc requests from a shared-line user for the calls that are owned by other T-Library clients.
Inbound Call Alerting
The following graphic and table describe the inbound call alerting.
| Caller (60972)
|
DN 60970
|
DN 60970_2
|
Call Monitoring
|
EventOffhook
ThisDN 60972
EventDialing
ConnID 1
ThisDN 60972
OtherDN 60970
CallState Ok
|
(10) EventRinging
ConnID 1
ThisDN 60970
ThisDNRole Destination
OtherDN 60972
OtherDNRole Origination
CallState Covered
CallType Internal/Inbound (depends on 60972 location)
Extensions: AppearanceIndex 1
CallState value is Covered because this is a call to a shared line.
|
(12) EventRinging
ConnID 1
ThisDN 60970_2
ThisDNRole Destination
OtherDN 60972
OtherDNRole Origination
CallState Covered
CallType Internal/Inbound (depends on 60972 location)
Extensions: AppearanceIndex 1
CallState value is Covered because this is a call to a shared line.
|
EventCallCreated
ConnID 1
EventCallPartyAdded
ConnID 1
DN 60972
PartyID 1
State Initiated
EventCallPartyState
ConnID 1
PartyID 1
State Connected+Dialing
EventCallPartyAdded
ConnID 1
DN 60970
PartyID 2
State Alerting
EventCallPartyAdded
ConnID 1
DN 60970_2
PartyID 3
State Alerting
|
Inbound Call Answered
The following graphic and table describe the inbound call answered call flow.
Caller (60972)
|
DN 60970
|
DN 60970_2
|
Call Monitoring
|
EventEstablished
ConnID 1
ThisDN 60972
ThisDNRole Origination
OtherDN 60970
OtherDNRole Destination
|
(3) EventEstablished
ConnID 1
ThisDN 60970
ThisDNRole Destination
OtherDN 60972
OtherDNRole Origination
Extensions: AppearanceIndex 1
|
EventReleased
ConnID 1
ThisDN 60970_2
ThisDNRole Destination
OtherDN 60972
OtherDNRole Origination
CallState Redirected
|
EventCallPartyDeleted
ConnID 1
PartyID 3 (60970_2)
EventCallPartyState
ConnID 1
PartyID 2
State Connected
|
Call Termination by a Non-shared Line Phone
The following graphic and table describe the call termination by a non-shared line phone call flow.
Call Termination by a Non-shared Line Phone
Caller (60972)
|
DN 60970
|
DN 60970_2
|
Call Monitoring
|
EventReleased
ConnID 1
ThisDN 60972
OtherDN 60970
|
(3) EventReleased
ConnID 1
ThisDN 60970
OtherDN 60972
CallState OK
(4) EventOnHook
ThisDN 60970
|
|
EventCallPartyDeleted
ConnID 1
PartyID 2
EventCallPartyDeleted
ConnID 1
PartyID 1
EventCallDeleted
ConnID 1
|
Outbound Call from SCA
The following graphic and table describe the outbound call from SCA call flow.
| Caller (60972)
|
DN 60970
|
DN 60970_2
|
Call Monitoring
|
EventRinging
OtherDN 60970
EventEstablished
OtherDN 60970
|
(3) EventPrivateInfo
ServiceId 4026
ThisDN 60970
Extensions: AppearanceIndex 1
(11) EventOffHook
ThisDN 60970
Extensions: AppearanceIndex 1
(12) EventDialing
ConnID 1
ThisDN 60970
ThisDNRole Origination
OtherDN 60972
OtherDNRole Destination
Extensions: AppearanceIndex 1
(24) EventEstablished
ConnID 1
ThisDN 60970
ThisDNRole Origination
OtherDN 60972
OtherDNRole Destination
Extensions: AppearanceIndex 1
|
|
EventCallCreated
ConnID 1
EventCallPartyAdded
ConnID 1
DN 60970
PartyID 1
State Initiated
EventCallPartyState
ConnID 1
PartyID 1
State Connected+Dialing
EventCallPartyAdded
ConnID 1
DN 60972
PartyID 3
State Alerting
EventCallPartyState
ConnID 1
PartyID 3 (60972)
State Connected
|
Abnormal Call Flow
| Interruption Point
|
DN 60970
|
DN 60970_2
|
Call Monitoring
|
| * 60970 hangs up
|
EventReleased
ConnID 1
ThisDN 60970
OtherDN 60972
CallState OK
EventOnHook
ThisDN 60970
|
|
|
| ** 60970 hangs up
|
EventReleased
ConnID 1
ThisDN 60970
OtherDN 60972
CallState OK
|
|
EventCallPartyDeleted
ConnID 1
PartyID 1
EventCallDeleted
ConnID 1
|
Hold/Retrieve
The following graphic and table describe the hold/retrieve call flow.
| DN 60970
|
DN 60970_2
|
Call Monitoring
|
(5) EventHeld
ConnID 1
ThisDN 60970
OtherDN 60972
(11) EventReleased
ConnID 1
ThisDN 60970
OtherDN 60972
CallState Transferred
Cause 1stepTransfer
|
EventOffhook
ThisDN 60970_2
Extensions: AppearanceIndex 1
EventRinging
ConnID 1
ThisDN 60970_2
OtherDN 60972
CallState Transferred
Extensions: AppearanceIndex 1
(15) EventEstablished
ConnID 1
ThisDN 60970_2
OtherDN 60972
CallState OK
Extensions: AppearanceIndex 1
|
EventCallPartyState
ConnID 1
PartyID 60970partyID
State Held
EventCallPartyDeleted
ConnID 1
PartyID 60970PartyID
EventCallPartyAdded
ConnID 1
PartyID 60970_2partyID
State Alerting
EventCallPartyState
ConnID 1
PartyID 60970_2partyID
State Connected
|
Abnormal Call Flow
| Interruption Point
|
DN 60970
|
DN 60970_2
|
Call Monitoring
|
| * 60970 hangs up
|
EventReleased
ConnID 1
ThisDN 60970
OtherDN 60972
CallState OK
|
|
EventCallPartyDeleted
ConnID 1
PartyID 60970PartyID
EventCallPartyDeleted
ConnID 1
PartyID 60972PartyID
EventCallDeleted
ConnID 1
|
Barge-in
The following graphic and table describe the barge-in call flow.
|
|
DN 60970
|
DN 60970_2
|
Call Monitoring
|
EventPartyAdded
ConnID 1
ThisDN 60972
OtherDN 60970
OtherDNRole NewParty
ThirdPartyDN 60970
ThirdPartyDNRole AddedBy
CallState Conferenced
|
EventRinging
ConnID 1
ThisDN 60970
CallState OK
ThisDNRole ConferenceMember
Extensions: AppearanceIndex 1
|
EventPartyAdded
ConnID 1
ThisDN 60970_2
OtherDN 60970
OtherDNRole NewParty
ThirdPartyDN 60970
ThirdPartyDNRole AddedBy
CallState Conferenced
|
EventCallPartyAdded
ConnID 1
PartyID 60970partyID
State Alerting
|
|
|
EventOffhook
ThisDN 60970
Extensions: AppearanceIndex 1
EventEstablished
ConnID 1
ThisDN 60970
CallState Conferenced
Extensions: AppearanceIndex 1
|
|
EventCallPartyState
ConnID 1
PartyID 60970partyID
State Connected
|
