RE: ISDN trunk and VOIP

From: Bhavin Patel (BPatel@ibasis.net)
Date: Wed Jun 23 2004 - 14:43:29 GMT-3


Hi Peter,

Dont know if your 2651 supports this command, but you can try this under
global configuration.

voice service voip
signaling forward none

Bhavin

-----Original Message-----
From: pbubienczyk@szczesliwice.pl [mailto:pbubienczyk@szczesliwice.pl]
Sent: Wednesday, June 23, 2004 10:38 AM
To: mmaslo@optonline.net
Cc: ccielab@groupstudy.com
Subject: Re: ISDN trunk and VOIP

My gateway is configured in standard way (user side). config from 2651
below:

interface BRI1/1
 no ip address
 isdn switch-type basic-net3
 isdn incoming-voice voice
 isdn static-tei 0

voice-port 1/0/0
 compand-type a-law
 cptone PL

dial-peer voice 2 pots
 huntstop
 destination-pattern 618588...
 progress_ind alert enable 8
 direct-inward-dial
 port 1/0/0
!
dial-peer voice 10 voip
 destination-pattern 22.......
 session target ipv4:x.x.x.x

The configuration DOESN'T change comparing to the running instalation with
3640
(IOS ver 12.2(5))

I think the problem is that in ios ver 12.2(11)T6 the ISDN SETUP message is
extended comparing to the 12.2(5) main line. And particulary I don't like
this
long Facility string in ISDN SETUP message. In fact PBX doesn't see anything

after it in the SETUP message (no calling, no called number).

rgds - Peter

Quoting mmaslo@optonline.net:

> Peter,
>
> How is your gateway configured from the ISDN prospective ? Are you
emulating
> the network side or user side (default) ?
>
> If you have the config handy it would help too.
>
> Matt
>
> ----- Original Message -----
> From: pbubienczyk@szczesliwice.pl
> Date: Wednesday, June 23, 2004 7:03 am
> Subject: ISDN trunk and VOIP
>
> > I've got the problem with my VOIP network
> >
> > I've two gateways (2651 with 12.2(11)T6 and 2621XM with
> > 12.2(8)T5), they are
> > connected with two PBX Alcatel 4400 by ISDN BRI(2651) and
> > PRI(2621XM) trunks.
> >
> > I've problem with the facility message in ISDN SETUP message.
> > Seems like PBX
> > don't like it and not accepting the connection.
> >
> > Previously BRI trunk (now on 2561) ran on 3640(with 12.2(5)) and
> > my VOIP was
> > working fine, and I think that there was no facility messages in
> > ISDN SETUP.
> >
> > Somebody knows how to get this facility out of ISDN SETUP message,
> > or how to
> > fix the problem???
> >
> > Log from 2651:
> >
> > Jun 23 09:33:13: ISDN BR1/0 Q931: TX -> SETUP pd = 8 callref = 0x24
> > Bearer Capability i = 0x8090A3
> > Standard = CCITT
> > Transer Capability = Speech
> > Transfer Mode = Circuit
> > Transfer Rate = 64 kbit/s
> > Channel ID i = 0x83
> > Facility i =
> >
>
0x9E0100036774640000002E49414D2C0D0A4743492C36626638663133346334316531316438
3933
> > 31636164386532346238646132310D0A0D0A
> > - Unknown Service Discriminator
> > Calling Party Number i = 0x0181, '225852536'
> > Plan:ISDN, Type:Unknown
> > Called Party Number i = 0xA1, '817'
> > Plan:ISDN, Type:National
> > High Layer Compat i = 0x9181
> > Jun 23 09:33:13: ISDN BR1/0 Q931: RX <- STATUS pd = 8 callref = 0xA4
> > Cause i = 0x81E41C - Invalid information element contents
> > Call State i = 0x06
> > Jun 23 09:33:13: ISDN BR1/0 Q931: TX -> RELEASE pd = 8 callref = 0x24
> > Cause i = 0x80E5 - Message not compatible with call state
> >
> >
> > thx - Peter
> >
> > _______________________________________________________________________
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