IP Phone or PBX
Zadarma services can be used with any standard VoIP equipment that works on a SIP protocol. This could be an IP phone, which looks like a regular landline phone, or it can be an IP gateway with ports to connect standard phones or a PBX.
SIP devices are connected directly to an online network and 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