A1 Call

A1 Call is the most happening mobile dialer in the telecom circles

A1 Call is the most happening mobile dialer in the telecom circles. It is a simple downloadable app that allows you to make VoIP calls from your mobile at low rates with best quality. It works on all Android supported devices with limited internet connectivity via 3G/Edge/Wi-Fi, etc.

The features attached to this dialer give you a rich content for making VoIP calls. VoIP Providers can leverage this app to further their business by connecting to larger user base.

Top Features:

Uninterrupted call connection even in low bandwidth areas

Supportive to codecs : G729,PCMU, PCMA

Latest UI

Loud Speaker

Real-time SIP status messages

SIP based protocol for Signaling

Improved Call History

Works past NAT or Private IP

Hold

Compatible with all SIP standard switches

Address Book Consolidation

Automatic Balance Consolidation

Jitter buffer implementation for smooth voice

Encourages use of silent suppression and comfort noise generation to reduce bandwidth usage

Auto detects contacts sourced from phone book

Thus,A1 Call is a comprehensive mobile dialer that makes your VoIP calling effortless and enjoyable