Fiber-optic voice services. Astound Primary Rate Interface (PRI) is a channelized digital trunk service to connect a PBX or key system to the Public Switched Telephone Network (PSTN). Astound PRI provides 24 channels (23B + 1D) on a T1 interface on your...
Having a PRI provides a cost-efficient alternative to terminating individual analog trunks into a PBX system.
Digital vs. analog technology
Our PRI uses digital rather than analog technology between the PSTN network and your premises for better security and fault tolerance.
The PRI interface is a worldwide standard supported by all PBX manufacturers. It includes voice channels as well as the D channel for call set-up and tear-down functionality.
Our PRI has the capability to include two-way trunks and Caller ID (name/number) notification. It also reduces call set-up times by utilizing D channel out of band signaling across the PSTN network.
Leverage unused bandwidth
With voice and data converged on one network, bandwidth can be dynamically allocated to allow for increased or decreased usage in either direction. For example, you can temporarily allocate bandwidth to support batch jobs during down times to reduce excess, idle capacity.
Maximize existing investments
SIP Trunking can support existing on-premises equipment.
Converging voice and data on the same network means there’s no need to manage or pay for separate access.
SIP Trunking uses compression technology to pump more voice traffic on the same size pipe.
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