Dial from Lync using UCM's trunk directly



Lync and Grandstream UCM’s are peer connected. Lync client call to cell phone procedure is:

  1. Lync call to 9 and hearing UCM’s IVR.
  2. After hearing UCM’s IVR, pressing to cell phone number.

Question is:
Is it possible to call to cell phones direcly from Lync client. (Without hearing any IVR, directly pressing cell phone numbers)