Which WAN Technology is Best for VoIP System with 23 Concurrent Channels?

Which of the following WAN technologies is MOST preferred when developing a VoIP system with 23 concurrent channels?

A.

DSL

B.

POTS

C.

T1

D.

DOCSIS.

C.

When designing a VoIP (Voice over IP) system with 23 concurrent channels, the most preferred WAN (Wide Area Network) technology would be T1.

T1 is a dedicated digital communication line that has a maximum bandwidth of 1.544 Mbps. It is commonly used in businesses for voice and data communications. T1 lines provide 24 channels, each capable of transmitting data at 64 kbps. In the case of a VoIP system, each channel can carry one voice call.

Since a VoIP call typically requires a minimum of 64 kbps of bandwidth per call, a T1 line with 24 channels can support up to 24 concurrent calls. Therefore, if the VoIP system requires 23 concurrent channels, T1 would be the most suitable WAN technology.

The other options provided in the question are not as suitable for a VoIP system with 23 concurrent channels.

DSL (Digital Subscriber Line) is a type of Internet connection that uses existing phone lines. DSL has a limited bandwidth and is typically used for residential Internet connections, not for VoIP systems with high call volumes.

POTS (Plain Old Telephone Service) is the traditional phone system that uses analog technology. POTS is also not suitable for a VoIP system with high call volumes.

DOCSIS (Data Over Cable Service Interface Specification) is a technology used for Internet access over cable television networks. While DOCSIS can provide high bandwidth, it is not designed for voice communications and may not be reliable for a VoIP system.

In summary, when developing a VoIP system with 23 concurrent channels, T1 is the most suitable WAN technology due to its dedicated digital communication line and ability to provide 24 channels, each capable of carrying one voice call.