Telcal is designed specifically to leverage the iPhone's unique capabilities and easy way to make a iPhone voip call by using iPhone devices. Featuring a comfortable and simple user interface iPhone sip client lets you connect your iphone to standard landline or mobile phones.
Telcal works just like standard SIP Softphones i.e. it gets registered on the SIP server and then let the authenticated caller makes calls.
This application provides Voice over IP functionality for subscribers of the AdaptConn Telcal Emergency VoIP Network.
Use your provided extension and password to login. Only available on Adaptconn SATCOM network.
SIP protocol support
Making and receiving calls
Phone Book (Synchronize with Phone Address Book)
Add contact from App
Local signaling (Dial tone, busy, ring back, etc.)
Supported : iOS 7.0 or later.This Application is optimized for iPhone 5 and iPhone 6s .
Internet Connectivity: Wi-Fi,3G.