Do all mobile or cellular phones support Mobile VoIP services?
No. Not all mobile VoIP services work with all cellular phones. To make certain that your cellular phone will work with mobile VoIP, contact your preferred mobile VoIP service provider prior. In general cellular handsets that feature WiFi capabilities and support for 3G networks can be utilized with mobile VoIP services. The Nokia N and E series cellular phones are also widely supported, but again, to be certain, make sure you check with your mobile VoIP service provider to avoid any issues.