A-Tel Dialer is full functional soft phone to make VoIP calls. It requires internet connection of GPRS/3G/4G or WiFi network. Features: 1. VoIP incoming and outgoing call. 2. Supported codec: G. 729. 3. Support full functional SIP to SIP call. 4. Works behind NAT. 5. Can bypass any Firewall. 6. Low bandwidth consumption by customized byte saver solution.
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