Siemens I-SURF User Manual download pdf (Page 64)

11. Troubleshooting

58

ISDN Software

No ISDN

connection

possible either

incoming and

outgoing

D channel

protocol

incompatible

Is the D channel

protocol DSS1?

Ask ISDN carrier

for D channel

protocol.

ISDN connection

to a specific

target not

possible

Incompatible B

channel protocols

Are the B

channel protocols

(X.75, ML/PPP)

identical on both

sides ?

Ask remote ISDN

site for B channel

protocol.

Incompatible

ISDN services

Are the ISDN

services (data,

speech) identical

on both sides?

Ask remote ISDN

site for ISDN

service setting.

Incompatible

application

protocols

Are the

applications

(EFT, TCP/IP,

Fax) identical on

both sides?

Ask remote ISDN

site for

application to be

used

Interrupted data

transfers

Instable USB

interface

Does the ISDN

Adapter work

with another PC?

Use another PC.

USB influenced

by another USB

peripheral device

Does the ISDN

Adapter work

with the USB

device detached

from the USB?

Remove the

other USB device

from the USB

bus.

PC Software

“No CAPI found” CAPI not

installed

Does the CAPI

appear in the

network protocol

list of the

Network Control

Panel?

Install CAPI, run

Setup manually

from CD root

directory

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