Since release 4.0R1 of Lotus Sametime Unified Telephony it is possible to configure Call Pickup Groups whose members are located at different Lotus Sametime Unified Telephony and nodes, i.e. a CPG (Call Pickup Group) may span across the SIP-Q network.
Each local call pickup group is capable of adding a list of associated remote CPGs located elsewhere in the private SIP-Q network, but within the same BG (Business Group) in the logic of private SIP-Q networking.
The network-wide CPG feature relies on a feature activation and routing mechanism that is based on network-wide unique Access Codes being assigned to the involved Lotus Sametime Unified Telephony Business Groups and nodes. For a this Access Code corresponds to its Node ID.
The provisioning of network-wide unique Access Codes and network-wide CPGs must be carefully planned and administered as a network-wide service at each participating network entity.
On the Lotus Sametime Unified Telephony side, the following actions have to be performed:
- For every local BG (Business Group) that shall be provisioned with a network-wide CPG, the unique Access Code has to be configured as a PAC (Prefix Access Code), pointing to the Network-wide Feature Activation Service (Network Feature). Furthermore, the Access Code has to be assigned to this BG as its BG Access Code.
- The Destination Access Codes (i.e. Access Codes of remote Lotus Sametime Unified Telephony BGs or nodes) have to be made routable across the network. PACs with appropriate destinations have to be created in the appropriate numbering plans.
- When configuring a network-wide CPG, the associated remote CPGs have to be specified by the Access Code of their enclosing administrative entity (BG or Node) and their identifying number within this entity. Because Access Codes are unique across the network and the identifying numbers are unique within the enclosing entity, all CPGs can be properly addressed in this way.
Remote groups may be assigned to only one local group.
Point-to-Point Scenario (Example)
The following figure displays an example for a network-wide CPG, spanning across two Lotus Sametime Unified Telephony switches (Lotus Sametime Unified Telephony-1 and Lotus Sametime Unified Telephony-2) and a :
Subscribers S and T are located at CPG 1 in BG A of Lotus Sametime Unified Telephony-1
Subscribers X and Y are located at CPG 5 in BG B of Lotus Sametime Unified Telephony-2
Subscriber Z is located at CPG 1 of
In order to provison the network-wide CPG, the BG Access Codes and Destination Access Codes have to be configured at both Lotus Sametime Unified Telephonys.
Figure 1. Network-wide CPG (Example)
Tandem Scenario (Example)
The following figure displays an example for a Lotus Sametime Unified Telephony acting as a (true) tandem node for calls related to a network-wide CPG. Even though the tandem node is not part of the CPG, the access code routing has to be enabled.
Figure 2. Network-wide CPG - Tandem Scenario (Example)(
Feature Access Codes for Call Pickup
How to Create a Call Pickup Group
How to Edit a Call Pickup Group
How to Add a local Subscriber to a Call Pickup Group