Draytek VigorIPPBX 3510 User Manual page 14
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Also See for VigorIPPBX 3510:
- Technical specifications (7 pages) ,
- Quick start manual (32 pages) ,
- User manual (269 pages)
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NT means Network Terminal. The ISDN port in NT mode is a port that used to connect
general ISDN phones. And TE means Terminal Equipment. The ISDN port in TE mode is a
port that used to connect ISDN line or ISDN PBX.
As for the Private Branch Exchange (PBX), it is more special because it has both ISDN-NT
and ISDN-TE devices at the same time. It can connect to the ISDN line to act as ISDN-TE
equipment; and it can connect to ISDN telephones to act as ISDN-NT equipment.
Based on the characteristics described above that the ISDN NT equipment and the ISDN TE
equipment must connect with each other, please pay special attention when you use ISDN
NT card and ISDN TE card.
VigorIPPBX 3510 Series User's Guide
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2 ISDN TE / 2 ISDN NT Ports
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4 ISDN TE Ports
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