Today, mobile employees need access to presence-enabled communication (voice/IM) both within the enterprise and outside of it. Single-Number Reach is a way for enterprise users to hand out a single identity and be reached wherever and on whichever device. With Single-Number Reach, mobile employees can now manage a corporate identity and personal identity on the same wireless device.
Enterprise Cellular Telephony is a feature of Office Communications Server 2007 R2. It provides the ability for a user to use Communicator Mobile to set up and control voice calls over the circuit-switched network.
Topology
The following figure is an example of a Communicator Mobile topology, and the various servers and signaling that occurs.
Single-Number Reach
Features
Single-Number Reach, in combination with Office Communications Server 2007 R2, enables valuable scenarios for users of Communicator Mobile. The following table describes a few features commonly used by Communicator Mobile users.
| Feature | Description |
|---|---|
|
Click-to-Call |
Call SIP URIs and telephone numbers from contact list and smart search results. |
|
SNR - Incoming |
Receive calls dialed to their single number on their Communicator Mobile device. |
|
SNR – Outgoing |
Make calls from their Communicator Mobile device. The caller-ID received reflects their single number. |
|
Deflection services for voice mail |
Incoming calls may be deflected to other targets – for example, voice mail. |
Server Roles
To implement Single-Number Reach in an Office Communications Server 2007 R2 environment, some additional server roles and technologies are required.
| Dependency | Description |
|---|---|
|
Call Control Server |
Sets up calls between the cellular device and the remote party |
|
Mediation Server |
Calls that exit the enterprise voice network exit by the Mediation Server |
|
PSTN Gateway |
Used to connect a VOIP network to the traditional Public Switched Telephone Network (PSTN) |