Public Switched Telephone Network (PSTN) has been in Australia since the 1930s, is a standard analogue telephone line that gives you one speech pair. If you want two people talking in your office at one time you need two PSTN lines. If three people are required to speak at once you need three PSTN lines. Each PSTN line has it’s own telephone number, when advertising, if you require your lines can be in rotary. Rotary means you advertise one number and when it is in use it rotates to the next number in the telephone exchange. PSTN supports fax.

Integrated Services Digital Network, otherwise commonly known, as ISDN is a clearer and more dedicated digital line with the added feature of indial. Indial is a 100 telephone number range. One main number and 99 indial numbers, which can be allocated to individual extensions. Your service provider can bill Indial numbers individually. The indial range can be established on new ISDN connections only.

PSTN lines can be converted to ISDN lines with no ISDN facilities such as the indials. Unless moving to new premises there is no advantage to changing to ISDN.

Indial numbers can assist with marketing, by indicating the calls to advertised numbers. A computer software package will list exactly which telephone numbers were called, this can determine which advertising methods are working effectively.

Below is an example of how Indial numbers may be used to assist with marketing and used for a direct personal line for staff.

The Hybrex DK-DPU-1 doorphone is a standard one button doorphone. Designed for the Hybrex G series it is a digital device running on a single pair from the main equipment and has relay contacts to control a doorlock solenoid.

An attractive feature of the DK-DPU-1, apart from its use of current digital technology, is that it is weatherproof.

Built in a cast aluminium case with a silver-grey hammertone enamel finish, the componentry of this doorphone is gasketed and sealed against the ingress of moisture, for many years trouble free service.

Features of the Hybrex ACP Door Station:

* The Hybrex ACP Door Station can either intercom all han0dsets or individual extensions, for example the Receptionist or deliveries only.

* The Door Station can be programmed so hands free calls can be made from the unit.

* The Door Station has a seven-digit lock code that enables entry from the outside (if the door is fitted with a door striker). This can be programmed so entry is accessed either 24 hours or set for a specified time frame.

RFID keys available in card or key-fob format.

Allows the Receptionist a visual status of lines and extensions that are in use or free.

Allows the Receptionist a visual status of lines and extensions that are in use or free.

During a power failure the battery back up unit provides up to 2 hours of power to the telephone system.

Housed in a convenient and attractive case these backup batteries will keep your phone system running in the event of a mains power failure.

Two cases are required per main equipment unit (KSU). Each case contains two 12 volt 7 amp/hour sealed lead acid (SLA) batteries for maintenance free operation. Charged by the main equipment the battery set, from a full charge state, will keep the attached system and its handsets operational for a minimum of 1 hour for a fully loaded fully configured system.

The alternative : should the system not be battery backed, in the event of a mains failure, a number of PSTN trunks can be configured to failover to standard analog handsets or other (non mains powered) equipment to maintain a telephone service. However any calls in progress not on the failover trunks will be lost at the time of failure.

Tired of the high cost of calls to mobile numbers from your business network? Your LCR (least cost routing) armoury is now complete with the addition to your network of the Hybrex P8-GWD GSM Router. Designed to convert fixed line calls to mobile calls the P8-GWD is ideal for small to large business with reduced communication costs in mind.

The Hybrex P8-GWD operates in the GSM 900 MHz and GSM 1800 MHz frequency bands providing an easy radio connection for voice and data transmission as the mobile trunk for your PABX/KTS system, or as a fixed mobile telephone for home use.

The Caller ID board allows the telephone number of the caller to display on the LCD screen of the handset and the last 10 incoming numbers can be reviewed.

Allows the connection of any analogue device to the digital telephone system.

2 port – 2 analogue devices eg cordless phones, computer modem and fax machines and standard handsets.

8 port – 8 analogue devices eg cordless phones, computer modem and fax machines and standard handsets.

This enables additional eight station ports to be installed to the telephone system.

This enables additional four PSTN lines to be installed to the telephone system.

This enables additional four PSTN lines to be installed to the telephone system.

Allows the connection of any analogue device to the digital telephone system.

2 port – 2 analogue devices eg cordless phones, computer modem and fax machines and standard handsets.

8 port – 8 analogue devices eg cordless phones, computer modem and fax machines and standard handsets.

This enables additional eight station ports to be installed to the telephone system.