Other way to integrate the enterprise telephony in Microsoft Lync, Skype for Business, Office 365, Cisco Jabber, ...
Corebridge UC Dialer module, integrated in Corebridge client application, enables users to control theirs desk phones from Microsft Lync, Skype for Business, Office 365 and Cisco Jabber  client applications.It runs with “all” Lync and Skype Enterprise client applications whatever the type of the Client Access License (CAL).

The key points ...

Use of industry-standard Telephony interfaces to control PBXs:
Supports most corporate PBXs such as Cisco, Alcatel, Avaya, Ericsson, Nortel, NEC, Siemens, Panasonic, Mitel, IPC, Etrali, Philips, Samsung...

Run with all type of Skype Client Access Licence (CAL standard, plus, Enterprise voice,..).

Leverage UC solutions for enterprise telephony control without customers having to upgrade or replace their PBXs.

No need to create a SIP Trunk between PBX and Skype for Business server.

Require the installation of Corebridge client application on user desktop.

Implement unified communications workflows and processes consistently across disparate telephony infrastructure.

Display phone presence states in Microsoft Lync, Skype for Business and Cisco Jabber client application whatever the device type is : Desk phone, DECT, Headset or  Smartphone.

UC Dialer for Lync and Skype for Business
UC Dialer for Jabber

Functionalities ...

With UC Dialer, the following functionalities are enabled from Microsoft Lync and Skype for business client application:
  • Make calls to internal and external numbers on the public network.
  • Answer calls from internal and external numbers.
  • Hold/un-hold internal and external calls.
  • Transfer calls to and from internal and external numbers.
  • Redirect calls to and from internal and external numbers.
  • Forward and DTMF generation.
  • Video Call and audio & Video Conference call using UC standard features.
  • Chat and IM.
  • Support of multi-device in coexistence with Lync/Skype and jabber Soft phone.
  • Click-to-call from any application.
  • Presence awareness; Telephony presence including multi-device : deskphone and Dect.
  • Unified contact directory (Corebridge Meta Directory) spanning all business applications and personal contact stores.
  • Call identification from personal contact and company different databases.
  • Call log management – Multi-device call log.
  • Reporting and powerful statistics.
  • Personal call routing driven by Lync/Skype/Jabber Presence, computer status, caller ID.
  • Application integration – caller profile screen pops.