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smohanasundaram
Beginner

Help to Configuring ISDN BRI Dialin

Hi

i have cisco 1750 router and ISDN BRI Card ( WIC 1B S/T ).Please help me to configuring this ISDN BRI Dial in.Please post sample configs

Thanks in Advance

S.Mohan

5 REPLIES 5
paolo bevilacqua
Hall of Fame Master

Search CCO or read manual for sample configs, there ae very many.

Hi

i configured the router and modem.when i dial from windows clients router debug isdn Q931 command shows following error

00:09:50: ISDN BR5/0: RX <- SETUP pd = 8 callref = 0x04

00:09:50: Sending Complete

00:09:50: Bearer Capability i = 0x9090A3

00:09:50: Channel ID i = 0x89

00:09:50: Progress Ind i = 0x8283 - Origination address is non-ISDN

00:09:50: Calling Party Number i = 0x2183, '4222562028', Plan:ISDN, Type:National

00:09:50: Called Party Number i = 0x81, '1390', Plan:ISDN, Type:Unknown

00:09:50: ISDN BR5/0: TX -> RELEASE_COMP pd = 8 callref = 0x84

00:09:50: Cause i = 0x80E404 - Invalid information element contents

NDEL-3660#

Please help me to solve this

This call shows a 'voice' or speech bearer capability -

Bearer Capability i = 0x9090A3

which breaks down as speech, 3.1 khz, G711alaw coding

The WIC-1BRI card is for ISDN data calls, not voice calls. This is why the call is failing.

If you want this router for voice operation, you will need a VIC-2BRI-ST/TE or similar ISDN voice card.

If you want this for data operation, the originating device needs to make a call using a data bearer capability (0x8890 - 64Kbps, unrestricted digital)

Hi

Thanks for your reply.i am using this isdn line for my data transfer.Please guide me to configuring the steps.

THANKS

Regs

S.Mohan

You don't actually configure anything. The other device making the call should be setting the bearer capability as data. At a guess, the other device is probably an analogue modem making a voice type modem call (v34bis, V90 or similar). If this is the case, then the ISDN WIC won't help as it does not have a corresponding digital modem module to place across the B channel to terminate the modem call.

Otherwise you need to determine why the remote device is making a speech call instead of a ISDN data call.

Post your config here so we can confirm how the router is configured.