IP Phone or PBX
Zadarma services can be used with any standard VoIP equipment that works on an SIP protocol. This could be an IP phone (which looks like a regular landline phone), or it can be an IP gateway that has ports connecting to standard phones or a PBX.
SIP devices are connected directly to an online network that allow you to call any city in the world (as you would with a landline phone), but at lower rates.
Setup instructions for VoIP equipment
To begin using Zadarma services, please register and login to your personal account.Register