New hardware available includes:

T-1/E-1 CAS Digital Trunk Interface Card

Channel Associated Signaling (CAS) is a generic name for a signaling method used on T-1 and E-1 carriers. T-1 uses Robbed Bit Signaling (RBS). This method utilizes all 24 channels for voice, data, and signaling, offering 24 voice channels for the Plexus system. E-1 provides 30 ‘clear’ channels for voice. The two remaining channels are reserved for framing and signaling. Each voice channel represents a digital trunk into the Plexus system.

ISDN PRI Digital Trunk Interface Card

ISDN PRI is an interface between a user and a digital telephony network capable of delivering many types of services. PRI can be implemented on either a T-1 or an E-1 carrier. In both cases, the full bandwidth of the bearer or B-channels is available for the transmission of voice. T-1 ISDN PRI offers 23 voice channels. E-1 ISDN PRI offers 30 voice channels. Each voice channel represents a digital trunk into the Plexus system.

ISDN BRI Digital Trunk Interface Card

ISDN BRI is a communication protocol that utilizes existing local loop wiring (i.e., standard 2-wire, single pair) to carry a digital signal. This signal can be split into two separate voice or data channels. A four port ISDN BRI card offers up to eight voice channels. Each voice channel represents a digital trunk into the Plexus system.

Direct Inward Dial (DID) Analog trunk Interface Card

Direct Inward Dialing (DID) is service offered by telephone companies in which the last digits (typically two to four) dialed by the caller are forwarded to the system on a DID trunk. DID allows the system to have several inbound dialed numbers that route directly to different users, user groups, auto attendants, fax machines, etc. DID also allows the system to have more telephone numbers than it has trunks because not all telephone numbers will be in use at the same time.

Digital Extension Interface (DEI) Card

The Digital Extension Interface card provides 8 digital extension ports. These ports are designed to operate with the Plexus Digital Key Telephones. Due to the digital signaling, these ports are not compatible with Plexus Analog Key Telephones or other analog phone devices.

PDT-30D Digital Key Telephone

The PDT-30D is a digital key telephone model designed for use with the Plexus Hybrid-Key Digital Telephone System. This phone requires only a two wire (single pair) connection to the Plexus system. The single pair wiring can help cut installation costs. The phone is not polarity sensitive, which prevents polarity reversal problems. The PDT-30D offers 52 interface keys including 20 programmable keys, speakerphone, message waiting display, and many other feature keys. The programmable keys can be set to monitor extensions or trunks or provide access to features, functions, or speed dial numbers. Several of the programmable keys on the PDT-30D can be set to access features by default.

The PDT-30D offers a Liquid Crystal Display (LCD) capable of displaying system status messages and Caller ID information.

PDT-22D Digital Key Telephone

The PDT-22D is a digital key telephone model designed for use with the Plexus Hybrid-Key Digital Telephone System. This phone requires only a two wire (single pair) connection to the Plexus system. The single pair wiring can help cut installation costs. The phone is not polarity sensitive, which prevents polarity reversal problems. The PDT-22D offers 34 interface keys including 10 programmable keys, speakerphone, message waiting display, and many other feature keys. The programmable keys can be set to monitor extensions or trunks or provide access to features, functions, or speed dial numbers. Several of the programmable keys on the PDT-22D can be set to access features by default.

The PDT-22D offers a Liquid Crystal Display (LCD) capable of displaying system status messages and Caller ID information.

DDSS-60 Digital Operator Console

The DDSS-60 Digital Operator Console provides 60 programmable keys for use in monitoring extensions or trunks, provide access to features or functions, or as filter keys for special applications (e.g., Hotel and Motel). The DDSS-60 Digital Operator Console is for use with PDT-30D and PDT-22D digital key telephones.

PVT-30D Analog Key Telephone (version 2.0)

The PVT-30D is an analog key telephone model designed for use with the Plexus Hybrid-Key Digital Telephone System. The PVT-30D offer 52 interface keys including 20 programmable keys, speakerphone, message waiting display, and many other feature keys. The programmable keys can be set to monitor extensions or trunks or provide access to features, functions, or speed dial numbers. Several of the programmable keys on the PVT-30D can be set to access features by default.

The PVT-30 D offers a Liquid Crystal Display (LCD) capable of displaying system status messages and Caller ID information.

CTI Interface

BBS Telecom is developing a Computer-Telephony Interface (CTI) solution aimed at small centers. The Plexus Telephone System uses the new CTI-version of the DXP card to provide third party call control using CSTA-standard commands. Dialogic’s CT Connect provides high level TAPI, TSAPI, and CT Connect APIs and is a required part of the solution.

Please contact your BBS Telecom representative for further details on the Plexus CTI solution.