Farallon Communications NetopiaTM manual Chapter

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48 CHAPTER 6

Depending upon the location you are dialing, there may be an incompatible local or toll telephone company. Though this is uncommon, if you suspect a telephone company problem when dialing local or toll data connections, contact your local telephone company and have it verify that you can dial a data call to the destination telephone number.

3.Make sure that the local and remote data applications have communication capability and are properly configured. Once you have verified that communication capability exists, make sure that the B-channel call data rate is the same as the remote destination B-channel call data rate.

If you are able to establish a data connection (in which the B- channel LED remains lit and your communications application receives a CONNECT message), but you are unable to send data, then it is possible that:

There is a difference in the local and remote B-channel data rates. Check with your telephone company.

There is a mismatch in the data communications proto- cols (such as V.120 versus PPP). Check with your network administrator or Internet Service Provider (ISP).

There is an interoperability mismatch between the local and remote applications. Check with your network admin- istrator or ISP.

4.From a terminal emulation program, use the AT>VD com- mand to test your ISDN connection. If your client software cannot establish a call, you may be able to use the CCIT cause codes returned by the ISDN switch to identify certain problems. Look for the line that reads “- last call attempt: CCITT failure cause = 0x10”. You can interpret the code as follows:

0x01 - Unallocated/Unassigned Number. While the num- ber is in a valid format it is not currently assigned. This may be an indication that you have a wrong number. You may also get this code if you try to establish an ISDN con- nection using only a seven-digit phone number when the full eleven digits are required. Check with your telephone company to see how many digits to use. Also, see code 0x58 below.

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Contents Farallonâ User’s Guide for WindowsPage Contents DOS About the Netopia Isdn PC Card Chapter Installation Inserting the PC CardConnecting Your Equipment InterfaceConnecting the S/T interface connector and RJ-45 cable Configuring the PC Card Connecting Your Interface to the PC CardWindows Windows NT Installation Select COM Port, then click Next ATI8 Windows 3.X and DOS Using the Setup Wizard Windows Configuration ToolChapter Windows CON fiGURATION Tool Profile Configuration Windows CON fiGURATION Tool For either the Primary or Alternate Location, the following Updating Firmware Chapter VT100 Configuration Tool Activation VT100 Configuration ToolMain VT100 Configuration Tool screen appears ESC Profile Configuration VT100 CON fiGURATION Tool For either the Primary or Alternate Location, the following Operation Making a ConnectionWindows Operation Windows NT Operation Chapter Windows NT Test Netopia Isdn PC Cård Netopia Isdn PC Card DOS Dialing with Multilink PPP About PPP Authentication Protocols Using Other Communications Applications Dialing with AT CommandsNetopia Isdn PC Card Leds Data CompressionPage Troubleshooting Chapter Troubleshooting Solutions to Common Problems NetopiaCard Xmit test Enter to start, Enter to stop Xmit test terminated Technical Specifications Netopia Isdn PC Card Hardware Specifications NTT Jate Regulatory Notices Regulatory Information for the United StatesRegulatory Information for Europe Appendix a AT Commands README.TXT file on the Netopia Isdn PC Card DiskAT@MENU Atvc AT Command Result Codes ConnectHOW to Reach US Farallon Technical SupportFarallon BBS Warranty Limited Warranty and Limitation of Remedies