A video call between three or more people presents "unique challenges" over Skype's peer-to-peer infrastructure, however, but it is high on Skype's priority list, Durchslag said. "Hopefully we'll have it in the not-too-distant future," he said.

Video is popular among Skype's 370 million users. On Christmas Day, 41 percent of all Skype calls were video calls as people used it to connect with relatives and friends, he said.

Skype is also coming to more devices. Skype Lite, the Java-based client for phones, should be available free from the Google Android store in the coming days. Along with T-Mobile's G1 Android phone, it will run on more than 100 Java-enabled phones from Motorola, LG, Samsung, Nokia and Sony Ericcson, Skype said.

The company has developed a Skype client for the iPhone but needs to reduce its power consumption before it can release it, Durchslag said.

More businesses are looking at Skype as a way to cut communications costs, but Durchslag acknowledged that the software still lacks features that businesses require, as well as a services infrastructure to support businesses.