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timm
Beginner

Voice call rejected, router thinks it's a modem

I'm getting the following error when I make a voice call into a new 3945 with a NM-8CE1T1-PRI voice card:

*Jun 17 00:40:21.479: ISDN Se1/2:23 Q931: RX <- SETUP pd = 8  callref = 0x0004

        Bearer Capability i = 0x8090A2

                Standard = CCITT

                Transfer Capability = Speech

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA98396

                Exclusive, Channel 22

        Calling Party Number i = 0x2183, '6304687534'

                Plan:ISDN, Type:National

        Called Party Number i = 0x89, '2238'

                Plan:Private, Type:Unknown

        Locking Shift to Codeset 6

        Codeset 6 IE 0x37  i = 0x0400

*Jun 17 00:40:21.479: ISDN Se1/2:23 Q931: Received SETUP  callref = 0x8004 callID = 0x0094 switch = primary-ni interface = User

BMV-IGCN-PSTN3945-03(config)#

*Jun 17 00:40:21.479: ISDN Se1/2:23 **ERROR**: accept_incoming_csm_call: modem problem Bearer capability not available(0x3A): b channel 21, call id 0x94

*Jun 17 00:40:21.479: ISDN Se1/2:23 Q931: TX -> CALL_PROC pd = 8  callref = 0x8004

        Channel ID i = 0xA98396

                Exclusive, Channel 22

*Jun 17 00:40:21.479: ISDN Se1/2:23 Q931: TX -> DISCONNECT pd = 8  callref = 0x8004

        Cause i = 0x80BA - Bearer capability not available

*Jun 17 00:40:21.611: ISDN Se1/2:23 Q931: RX <- RELEASE pd = 8  callref = 0x0004

*Jun 17 00:40:21.611: ISDN Se1/2:23 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x8004

The Serial Interface is set up the same way I have always done it:

interface Serial1/2:23

no ip address

encapsulation hdlc

isdn switch-type primary-ni

isdn incoming-voice voice

isdn supp-service name calling

trunk-group INBOUND

no cdp enable

!

There are 3 PVDM3-128 modules set up as flex, so I don't think it's a lack of resources.

1 REPLY 1
paolo bevilacqua
Hall of Fame Master

NM-8CE1T1-PRI does not supports voice calls.

Use VWICx for voice calls.

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