A company by the name of iCall is offering the ability to both make and receive free phone calls on your iPhone when in range of a wireless hotspot. What’s interesting about this is that you can also hop on and off of the VoIP service as you enter and leave a hotspot, as shown in the YouTube video (after the break). It also has access to your entire address book on your iPhone, along with a customizable voicemail feature. This application should be available next week when the SDK App Store comes out.

Click through to see the video.

Sipgate has just launched the beta version of its new application which will bring VoIP service to the iPhone. Using industry standard SIP, iPhone users will be able to place or receive VoIP calls over WiFi using their iPhones. Additionally, Sipgate’s VoIP service lets users maintain both domestic and international numbers in one place. The more »