Incomming voice fail, but outgoing fine.

[admin_2]

Hi all.. I would like any help..

I have connected my cisco router with 2 bri ports too an PBX. Outgoing calls is OK, but when dialing an number on the Cisco BOX it comes with an fail...

Heres the "debug isdn q931" log..

May 12 06:09:27.108: ISDN BR1/1 Q931: RX <- SETUP pd = 8 callref = 0x2F

Bearer Capability i = 0x8090A3

Standard = CCITT

Transer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0x83

Calling Party Number i = 0x0180, '26881234'

Plan:ISDN, Type:Unknown

Called Party Number i = 0xA1, '12345678'

Plan:ISDN, Type:National

Sending Complete

May 12 06:09:27.116: ISDN BR1/1 Q931: TX -> RELEASE_COMP pd = 8 callref = 0xAF

Cause i = 0x80E4 - Invalid information element contents

I cann see from that it's the router thats disconnect my call... but why..

Jan Kornbak

[rnarayana]

According to the disconnect cause code it looks like a D-Channel error.

http://www.cisco.com/en/US/tech/tk801/tk379/technologies_tech_note09186a008012e95f.shtml

What kind of PBX it is ?

Thanks,

Radhika

[l.kasneci]

Hi Jan,

did you resolve the problem? I have the same issue;

cheers

[layer3]

Hi.

The most common problem is the bearer cap being wrong.

From the partial debug, the pbx is asking for bearer cap of G.711 A-law speech.

On the voice-ports what compand-type and bearer-cap do you have configured?

If you have nothing referring to this, add the following two lines under your voice-ports:

voice-port x/y/z

compand-type a-law

bearer-cap Speech

If this is not the problem, compare de debug isdn q931 of an incoming with an outgoing call and note the differences.

Should you need help, please post complete debug messages and your show run.

cheers,

Filipe