Telephony - Catalyst Communication Technologies

Telephony Integration

Many communications centers need Dispatch Operators to manage communications from both telephone users and mobile radio users. Catalyst technology incorporates a variety of telephony interface solutions to meet the differing needs of these communications centers.

The simplest requirement is surprisingly basic:  Can a Dispatch Operator use a single headset to communicate with both telephone and radio users? The Catalyst Telephone Headset Interface (THI) is the answer.

This interface simplifies operator operations, a critical asset of command and control communications.

While many communications centers maintain separate radio and telephone networks, sometimes it’s helpful to create interoperability between mobile radio users and telephone users. Catalyst provides two solutions to meet these needs.

Public Switched Telephone Network (PSTN) – IP|PSTN™

This gateway interfaces to a standard analog “plain-old-telephone system” (POTS) line. This type of connection is the same as having a land-line phone at your home. Most often this application is a single PBX extension, and users that wish to speak with a mobile radio user can call this extension and be patched to a mobile radio user by the Dispatch Operator. At the dispatch console, this PBX extension looks like any other radio resource (channel, talk group) that can be accessed.

Session Initiation Protocol (SIP) – IP|SIP™

This Gateway interfaces to a VoIP telephony path or SIP PBX system through a SIP Ethernet interface on a PBX. More control of extensions and trunks can be established by the Dispatch Console than with a POTS Line interface.  Catalyst has integration with many of the market leaders providing SIP based PBXs.


IWCE 2022: Standing up a remote dispatch system ‘doesn’t happen overnight’ We moderated a panel on Work From Home Alternatives for Dispatchers – what the pandemic taught us. IWCE's Andy Castillo was present for the action and filed this report.…