Recent data from IDG Research shows that many IT executives are counting on SIP to help them meet employee efficiency and customer experience goals. Read this paper to review the top benefits and best practices for SIP migration.
This one's a bit obvious, but the capability to IM from wherever and not incur SMS charges can really come in handy. Imagine essentially the same functionality as SMS, yet it's free when most carriers are charging as much as 20 cents per text message. Despite using more bandwidth than SMS, it allows messaging to anyone logged into AIM. Funny, that. Free through App Store.