Callcentric vs CSipSimple
A side-by-side look at Callcentric and CSipSimple. For an in-depth review of either product, follow the links below.
Callcentric
Online Services
Callcentric is a voice over IP (VoIP) phone service provider that offers unlimited calling plans and the ability to use your existing phones. It allows you to get a phone number in the area code of your choice and make inexpensive domestic and international calls over the internet.
voipphonecallinginternet-calls
CSipSimple
Social & Communications
CSipSimple is an open source SIP client for Android that allows you to make VoIP calls over Wi-Fi or mobile data. It supports common SIP features like call transfer, call forwarding, call waiting, 3-way conferencing, etc.
voipsipandroidcallswifimobile-data
Related Comparisons
FaceTime
Talkatone
Zoiper
PhonerLite
Linphone
Phoner Second Phone Number