VOIP Service Providers Residential
Vox Mundi
Vodatel d.o.o.
Session Initiation Protocol (SIP) is a text-based standard put in place by the Internet Engineering Task Force (IETF) and is the primary protocol for Voice over Internet Protocol services. SIP is similar to a MGCP in that it's a signaling protocol that can create, maintain and terminate sessions in IP-based networks. These sessions include multimedia conferencing and two-way phone calls. SIP protocol can run on User Datagram Protocol (UDP), Stream Control Transmission Protocol (SCTP) and Transmission Control Protocol (TCP) because it was created to function independently from the underlying Transport Layer as an Application Layer.
Apelby Communications
We are a Germany-based wholesale carrier with offices in the Czech Republic, Slovenia, Malaysia and Vietnam. We specialize in doing VoIP service since our establishment in 2005 and we have continued to grow in both the number of customers and amount of minutes.
Currently we are interconnected with around 200 carriers specially many Tier-1 carriers as T-Mobile, Telefonica, BT, Vodafone, Verizon, Orange, China Mobile, Bharti Airtel, Tata Communications, BICS... and we are terminating around 150 million voice minutes monthly.
