Chapter 4 - Troubleshooting

Q:Is it possible to build a point to point (end to end) videophone system based on the ISDN card?

A:Yes, for versions after V2.24, a point to point videophone system is possible to set up. You’ll need the following devices: ISDN Adapter, Sound Card with speaker and microphone, Video Capture Card, Camera, CPU:P-133, RAM 32M, VDOPhone.

You’ll need to add a virtual modem (ISDN Videophone adapter) which runs HDLC at 512 bytes per-packet (equal to ATB0S39+512). This string can also be added in the Extra Setting field of the ISDN Universal-1 or Universal-2 adapter if you do not have the new MDMASU.INF file.

You may configure the VDOPhone application by selecting Setup>Modem, select the virtual modem defined above. Use Setup>Advanced and place a mark in the check box for Use non H.324 compliant Modem. Complete the other fields according to the requirements of the specific hardware you are using.

Q:I would like to use G3Fax, a voice answering machine and telephony with my ISDN card in a Windows environment. How can I do this?

A:Before using these functions you’ll need to install a CAPI compliant application such as RVS- COM.

Q:Can I use the MultiModemISDN adapter in a dual processor machine?

A:Yes, In version 2.52, dual processors are supported in Windows NT and Windows 2000.

LINETest

Initiate the line test utility in Windows 2000 by clicking on the icon on the taskbar. Select Line Test. Enter your ISDN telephone number and click Start. The adapter will establish a test call. The status of the ISDN B and D channels between the terminal adapter and the ISDN switch network will display.

Note: Before using Line Test, make sure your ISDN line is not in use.

LineTest Error Messages (CAPI 2.0)

0x3301

protocol error layer 1

0x3302

protocol error layer 2

0x3303

protocol error layer 3

0x3304

another application got that call

0x3401

unsigned number

0x3402

no route to specified transmit network

0x3403

not route to destination

0x3406

channel unacceptable

0x3411

user busy

0x3412

no user responding

0x3413

no answer from user

0x3415

call reject

0x3416

number changed

0x341a

non-selected user clearing

0x341b

destination out of order

0x341c

invalid number format

0x341d

facility rejected

0x341e

response to status inquiry

0x341f

normal, unspecified

MT128ISA/PCI

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