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GeoVision Digital Video Surveillance System


Remote View via ISDN Modem to ISDN Modem Connection

Setting for ISDN x.75 protocal


In your computer desktop, choose [My Computer] > [Control Panel] > [Modems].



In Modem Properties dialogue box, select [General] tag, and click [Properties] bottom.  

In this modem properties dialogue box, select [Connection] tag, and click [Advance] bottom.

In this Advanced Connection Settings dialogue box, find [Extra settings] task pane, enter ATB00. 

AT means we are now giving AT commands

B0 means we are now choosing protocol.

0 means we are commanding for X.75 protocol.


This value may vary for individual ISDN modem.You may ask your ISDN modem manufacturer or check their manual for AT command for X.75 protocol.


Henrys Electronics Ltd
404 Edgware Road, Paddington, London, W2 1ED, UK,
VAT Number : GB 241 7629 61
Tel:+44 (0)20 7258 1831, Fax:+44 (0)20 7724 0322, email:


All prices exclude 17.50% VAT, and Carriage Charges. For UK and Europe Please Add 17.50% VAT To All Prices, E & O.E. Last Up dated and Validate January 2004. All comments or enquires to: layout and design Duncan Evans, Copyright ©1997-2004 Henrys Electronics Ltd.