Introduction

estos ECSTA for Cisco CallManager Express makes available a Telephony Service Provider for Microsoft® Tapi 2.1 (also 2.2 and 3.0). This Tapi driver establishes a central communication between a server and the telephone system. On this server all devices on the telephone system are available as Tapi lines.
All estos ECSTA for Cisco CallManager Express drivers use the efficient interface CSTA in order to communicate with the telephone system.

For the installation and management of the driver see driver Management.

Supported telephone systems

PBX	Driver
Cisco CallManager Express from Version 8.0	ECSTA for CallManager Express

Supported Telephones
Only SCCP Phones are supported. It is not possible to use SIP phones.

Using in the network
After installing the driver, you may use all configured line devices on the server as TAPI-lines. If you are using a server based CTI Software, you may install it now. To have the TAPI-devices available on all workstations, the TAPI-driver must be distributed in the network. There are the following options:

1. estos UCServer
   The estos UCServer is a CTI/UCC server software which distributes the telephony informations across the network using a graphical client or a multiline TAPI driver. Workgroups, domains, Active Directory® and Terminal Server are supported.
2. estos CallControlGateway
   The estos CallControlGateway for Lync/OCS is a gateway that connects the TAPI-lines with the Lync/OCS server. This enables the Lync/OCS client to use traditional telephone devices via Remote Call Control (RCC).
3. Windows® Telephony Server
   The Windows® Telephony Server is a component of Windows® server operating systems since Windows® NT. You will need a domain. The service is limited to domain users.