I've been using Sendhub for a few days now and love it. Best integration to date I've seen of a hosted phone service. I am a Google Voice user and it's not bad but Sendhub is a major improvement. The iOS app actually functions closer to what making calls is like on the native iOS Phone app. Pricing seems decent though would love a tier in between the $25 and $50 level. I could see this being something I implement for employees moving forward who BYOD.