Microsoft Lync and Skype for Business have a rich set of .NET APIs which make it easy to extend the platform and integrate it with other applications. This blog helps explain how to use those APIs.

Avoiding clipping with outbound UCMA calls

Posted: September 17th, 2012 | Author: | Filed under: UCMA 3.0 | Tags: , , , , , , | 4 Comments »

One of the more common uses of UCMA is to create outbound dialer applications. Unfortunately, many people run into a frustrating problem at first when building dialers in UCMA: the first few seconds of audio seem to get lost somehow. When someone picks up the phone and says “Hello,” the first few seconds of audio back to the dialer get clipped, and there is often a delay before the recipient of the call hears the UCMA application play its message. Continue reading “Avoiding clipping with outbound UCMA calls” »

Shortening the “answer delay” with early media

Posted: May 16th, 2012 | Author: | Filed under: UCMA 3.0 | Tags: , , , , , | 2 Comments »

It’s common for a UCMA app, before answering an incoming audio call, to perform some setup steps: finding an agent to take the call, preparing media, whatever. These steps may be necessary if, for example, the call is being set up as a back-to-back call and they can’t be done after the call is already established. In other cases, the way the call is set up makes the actual process of accepting the call take some time. Unfortunately, this can lead to callers hearing multiple seconds of ringing (or, even worse, silence) before the call is fully established. It can also lead to “clipping” effects where the beginning of a message or someone’s greeting is cut off because the media flow isn’t quite established yet. A feature called “early media” allows your application to get around these limitations and eliminate most of that delay or clipping. Continue reading “Shortening the “answer delay” with early media” »