In order to make phone calls via the Internet one’s device has to be compatible with Softphone software. In example in order to call from a PDA using VoIP technology one has to install Softphone software, in order for it to work properly, PDA has to have Softphone compatibility.
Telekenex is a business-grade IP service provider with a robust private international IP network and innovative solutions, including: Managed Ethernet, SIP Trunking, Private MPLS + Internet, Managed Data Center and a full suite of IP Telephony solutions.