Panasonic KX-TD612E Manual

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General Features
Features Guide
135
Integrated Services Digital Network (ISDN) Extension
Description
ISDN extensions include ISDN terminal units such as ISDN telephones, facsimiles or personal 
computers which are connected to each ISDN (BRI) ports. A maximum of 8 terminal units can 
be connected to each ISDN (BRI) port with point-to-multipoint configuration. However, only 
up to 2 units can be used simultaneously. To user ISDN extension lines, an external or an 
internal power supply is required. Terminal equipment can be addressed individually with 
Multiple Subscriber Numbers (MSN). The MSN consists of the ISDN extension number and 
an additional digit, 0 through 99. If MSN is not assigned, all equipment on the same ISDN 
(BRI) port are called simultaneously.
The following bearer capabilities can be supported:
The functions of terminal equipment are similar to single line telephone functions as below:
Transfer Mode
Circuit
Circuit
Circuit
Transfer Capability
Unrestricted digital
Speech
3.1 kHz Audio
Features Available for ISDN Extension
*1
*1
*1
*3
*1
*1
*1