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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.

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.

Inbound Call Answered
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.

Outbound Call from SCA
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.

Hold/Retrieve
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.

Barge-in
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

This page was last modified on September 13, 2018, at 15:13.

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