Isdn Services - Intracom netMod User Manual

User's Manual of netMod Network Termination Unit

ISDN SERVICES

The ISDN services are divided into three main categories:
• the Bearer Services
• the Teleservices
• the Supplementary Services
The Bearer Services, are services responsible to transfer information (voice, data, image
etc.) between the subscribers, in real time, without changing the information structure.
These services concern the ISDN connection providers.
The Teleservices are telephone network services and are described below:
• Telephony at 3.1kHz
• Telephony at 7kHz (high quality level voice telephony)
• Facsimile with FAX G4 (advanced FAX with very high transmission rate)
• Videotext
• Teletext
• Videotelephony
The Supplementary Services are services offered via ISDN connections and are
described in detail in the next Chapter.
netMod also supports some other services known as Additional Services, which can be
activated / deactivated in the same way as Supplementary Services.
netMod supports some supplementary / additional services on its analogue ports, that can
be activated / deactivated separately on each port by means of an analogue telephone set
with (DTMF) dialling connected to the corresponding netMod's analogue port. This
activation / deactivation can also be achieved via the AT Commands (see "Supplementary
Services using AT Commands" page 73, "Additional Services using AT Commands" page
78) through the serial port connection of the PC.
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