Functionality

ISDN access enables setting up phone calls through the public network using the real-time switching technology. Thanks to compatibility with international standards, ISDN calls can be also used for data or Internet transmission.

We will connect your PABX directly to our network through an ISDN PRA line with standard ISDN DSS1 signaling (ISDN 30B+D). The access-line technology will be selected individually depending on your needs. The most often used solution is a radio line or fiber-optic line.

The GTS network is connected with other public carriers’ networks, so ISDN telephone calls to fixed and mobile networks, both domestic and international, can reach any Polish, international, or mobile network user.

Benefits of the ISDN network:

• Guaranteed high quality of the service
• Support for all types of calls
• Support for fax calls
• Support for data transfer
• DDI (Direct Dialing In) to route calls directly to company’s internal users (extension numbers)
• Moving the number range from another carrier, free of charge
• Cost control thanks to free-of-charge reports and detailed billings in the Eserwis Web application
• Support for conference calls and video conference calls
• Additional services such as number identification (CLIP, COLP), number restriction (CLIR, COLR), and other services supported by the ISDN standard
• Availability of the INfo service (a 0800 or 0801 hotline number)
• Handling even very intensive telecommunications traffic