Voice service is delivered over multiple channels that are aggregated at customer premises using a Private Branch Exchange (PBX).
Connecting Branch Offices and Customers with Accessible Channels.
• 24×7 Support
• Simultaneous calling
• Simultaneous calling
Benefits:

Virtual line assignment.

Dedicated voice channels.

Customer service line.

Easily integrated into existing landline Internet or leased line network.

Possibility of simultaneous calls.

Customized voice rate.