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Help Needed for Configuring Cisco 5300 for Incoming ISDN Calls / Error "accept_incoming_csm_call: modem problem Requested circuit/channel not available(0x2C)"

I'm trying to configure Cisco 5300 for the termination of incoming ISDN calls by VoIP.

Some of the calls (10%-20%) get rejected with an error message like:

Nov 23 19:11:15.023: ISDN Se0:15 Q931: RX <- SETUP pd = 8  callref = 0x006A
    Sending Complete
    Bearer Capability i = 0x9090A3
        Standard = CCITT
        Transfer Capability = 3.1kHz Audio
        Transfer Mode = Circuit
        Transfer Rate = 64 kbit/s
    Channel ID i = 0xA98385
        Exclusive, Channel 5
    Calling Party Number i = 0x2181, '619652123123'
        Plan:ISDN, Type:National
Nov 23 19:11:15.031: ISDN Se0:15 **ERROR**: accept_incoming_csm_call: modem problem Requested circuit/channel not available(0x2C): b channel 4, call id 0x10
Nov 23 19:11:15.039: ISDN Se0:15 Q931: TX -> CALL_PROC pd = 8  callref = 0x806A
    Channel ID i = 0xA98385
        Exclusive, Channel 5
Nov 23 19:11:15.039: ISDN Se0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x806A
    Cause i = 0x80AC - Requested circuit/channel not available
Nov 23 19:11:15.071: ISDN Se0:15 Q931: RX <- RELEASE pd = 8  callref = 0x006A
Nov 23 19:11:15.075: ISDN Se0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x806A

I verified by the usage of "show isdn service" that the requested channel was available.

I really have now idea, what could be wrong and how this can get fixed.

You find details about the configuration below. I will be very thankful for any hint.

Thank you in advance

   Jan Riedinger

The output of show version:

show version
Cisco Internetwork Operating System Software
IOS (tm) 5300 Software (C5300-IS-M), Version 12.3(26), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by cisco Systems, Inc.
Compiled Mon 17-Mar-08 18:28 by dchih

ROM: System Bootstrap, Version 12.0(2)XD1, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
BOOTLDR: 5300 Software (C5300-BOOT-M), Version 12.0(7)T,  RELEASE SOFTWARE (fc2)

xxx uptime is 1 hour, 27 minutes
System returned to ROM by reload at 18:59:38 cet Tue Nov 23 2010
System restarted at 19:00:29 cet Tue Nov 23 2010
System image file is "flash:c5300-is-mz.123-26.bin"

cisco AS5300 (R4K) processor (revision A.32) with 131072K/16384K bytes of memory.
Processor board ID 18264867
R4700 CPU at 150MHz, Implementation 33, Rev 1.0, 512KB L2 Cache
Channelized E1, Version 1.0.
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
Primary Rate ISDN software, Version 1.1.
Backplane revision 2
Manufacture Cookie Info:
EEPROM Type 0x0001, EEPROM Version 0x01, Board ID 0x30,
Board Hardware Version 3.1, Item Number 800-2544-03,
Board Revision D0, Serial Number 18264867,
PLD/ISP Version 0.0,  Manufacture Date 19-Mar-2000.
1 Ethernet/IEEE 802.3 interface(s)
1 FastEthernet/IEEE 802.3 interface(s)
128 Serial network interface(s)
8 Channelized E1/PRI port(s)
60 DSP(s), 120 Voice resource(s)
128K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
8192K bytes of processor board Boot flash (Read/Write)

Configuration register is 0x2102

The output of

show vfc 1 version vcware

Voice Feature Card in Slot 1:
     VCWare Version     :  11.41a
     ROM Monitor Version:  1.3
     DSPWare Version    :  4.1.41
     Technology         :  C549
VCWare/DSPWare version compatibility OK

show vfc 1 version dspware
DSPWare version in VFC slot 1 is 4.1.41
VCWare/DSPWare version compatibility OK

show running-config (modified to  avoid the disclosure of things like IP addresses):


Current configuration : 6137 bytes
!
! Last configuration change at 20:07:55 cet Tue Nov 23 2010
!
version 12.3
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
service password-encryption
!
hostname xyz
!
boot-start-marker
boot-end-marker
!
logging buffered 3000000 debugging
no logging rate-limit
no logging console
enable secret 5 xyz
enable password 7 xyz
!
!
!
resource-pool disable
clock timezone cet 2
!
no aaa new-model
ip subnet-zero
no ip domain lookup
no ip dhcp conflict logging
!
!
isdn switch-type primary-net5
!
voice call send-alert
voice call debug full-guid
voice rtp send-recv
!
voice class codec 1000
codec preference 1 g729r8
codec preference 2 g723r63
codec preference 3 g711alaw
codec preference 4 g711ulaw
codec preference 6 g723ar63 bytes 48
codec preference 7 g723ar53 bytes 40
!
voice class codec 1001
codec preference 1 g729r8
codec preference 3 g711alaw
codec preference 4 g711ulaw
!
!
!
voice class h323 100
  call start fast
!
!
!
!
!
!
!
!
!
controller E1 0
clock source line primary
pri-group timeslots 1-31

controller E1 1
clock source line secondary 1
pri-group timeslots 1-31
!
controller E1 2
clock source line secondary 2
pri-group timeslots 1-31
!
controller E1 3
clock source line secondary 3
pri-group timeslots 1-31
!
controller E1 4
clock source line secondary 4
!
controller E1 5
clock source line secondary 5
!
controller E1 6
clock source line secondary 6
!
controller E1 7
clock source line secondary 7
!
ip rcmd rsh-enable
!

interface Ethernet0
no ip address
shutdown
!
interface Serial0
no ip address
shutdown
clock rate 2015232
no fair-queue
!
interface Serial1
no ip address
shutdown
clock rate 2015232
no fair-queue
!
interface Serial2
no ip address
shutdown
clock rate 2015232
no fair-queue
!
interface Serial3
no ip address
shutdown
clock rate 2015232
no fair-queue
!
interface Serial0:15
no ip address
encapsulation hdlc
no logging event link-status
isdn switch-type primary-net5
isdn timer t321 40000
isdn overlap-receiving T302 4000
isdn incoming-voice modem
isdn map address .* plan unknown type unknown
isdn T310 60000
isdn negotiate-bchan resend-setup
isdn disconnect-cause not-available
isdn bchan-number-order ascending round-robin
isdn sending-complete
isdn reject cause 34
no cdp enable

interface Serial1:15
no ip address
encapsulation hdlc
no logging event link-status
isdn switch-type primary-net5
isdn timer t321 40000
isdn overlap-receiving T302 4000
isdn incoming-voice modem
isdn map address .* plan unknown type unknown
isdn T310 60000
isdn negotiate-bchan resend-setup
isdn disconnect-cause not-available
isdn bchan-number-order ascending round-robin
isdn sending-complete
isdn reject cause 34
no cdp enable
!
interface Serial2:15
no ip address
encapsulation hdlc
no logging event link-status
isdn switch-type primary-net5
isdn timer t321 40000
isdn overlap-receiving T302 4000
isdn incoming-voice modem
isdn map address .* plan unknown type unknown
isdn T310 60000
isdn negotiate-bchan resend-setup
isdn disconnect-cause not-available
isdn bchan-number-order ascending round-robin
isdn sending-complete
isdn reject cause 34
no cdp enable
!
interface Serial3:15
no ip address
encapsulation hdlc
no logging event link-status
isdn switch-type primary-net5
isdn timer t321 40000
isdn overlap-receiving T302 4000
isdn incoming-voice modem
isdn map address .* plan unknown type unknown
isdn T310 60000
isdn negotiate-bchan resend-setup
isdn disconnect-cause not-available
isdn bchan-number-order ascending round-robin
isdn sending-complete
isdn reject cause 34
no cdp enable
!
interface FastEthernet0
ip address xxx
duplex full
speed auto

!
ip classless
ip route 0.0.0.0 0.0.0.0 xxx
no ip http server
!
!
!
!
!
!
voice-port 0:D
timeouts interdigit 4
bearer-cap Speech
!
voice-port 1:D
timeouts interdigit 4
bearer-cap Speech
!
voice-port 2:D
timeouts interdigit 4
bearer-cap Speech
!
voice-port 3:D
timeouts interdigit 4
bearer-cap Speech
!
!

dial-peer voice 1000 pots
incoming called-number .
no digit-strip
direct-inward-dial
forward-digits all
!
dial-peer voice 200 voip
destination-pattern .
voice-class codec 1000
session protocol sipv2
session target ipv4:xxx
no vad
!

  • IP Telephony
2 REPLIES
Cisco Employee

Re: Help Needed for Configuring Cisco 5300 for Incoming ISDN Cal

Most likely for the calls this msg is being spit out are the ones

that do not match an inbound pots dialpeer and are hitting the

default (0)

I'd suggest to run deb voip ccapi inout along with deb isdn q931

to verify first.

New Member

Re: Help Needed for Configuring Cisco 5300 for Incoming ISDN Cal

Its pretty strange, there seems to be no "debug voip ccapi" output for

the rejected calls at all. Below you find another debug log, followed by

the activated debug options. For the other - not rejected - calls I get

the "normal" debug output from ccapi.

xyz#

Nov 23 22:54:21.338: ISDN Se0:15 Q931: RX <- SETUP pd = 8 callref = 0x0020

Sending Complete

Bearer Capability i = 0x9090A3

Standard = CCITT

Transfer Capability = 3.1kHz Audio

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98383

Exclusive, Channel 3

Progress Ind i = 0x8483 - Origination address is non-ISDN

Calling Party Number i = 0x1183, '902627457549'

Plan:ISDN, Type:International

Nov 23 22:54:21.346: ISDN Se0:15 *ERROR*: accept_incoming_csm_call:

modem problem Requested circuit/channel not available(

0x2C): b channel 2, call id 0xD0

Nov 23 22:54:21.350: ISDN Se0:15 Q931: TX -> CALL_PROC pd = 8 callref =

0x8020

Channel ID i = 0xA98383

Exclusive, Channel 3

Nov 23 22:54:21.350: ISDN Se0:15 Q931: TX -> DISCONNECT pd = 8 callref

= 0x8020

Cause i = 0x80AC - Requested circuit/channel not available

Nov 23 22:54:21.386: ISDN Se0:15 Q931: RX <- RELEASE pd = 8 callref =

0x0020

Nov 23 22:54:21.386: ISDN Se0:15 Q931: TX -> RELEASE_COMP pd = 8

callref = 0x8020

xyz#show debug

The following ISDN debugs are enabled on all DSLs:

debug isdn error is ON.

debug isdn q931 is ON.

voip:

voip ccAPI function enter/exit debugging is on

Am 23.11.2010 20:57, schrieb dksingh:

Jan Riedinger,

>

A new message was posted in the Discussion thread "Help Needed for Configuring Cisco 5300 for Incoming ISDN Calls / Error "accept_incoming_csm_call: modem problem Requested circuit/channel not available(0x2C)"":

>

https://supportforums.cisco.com/message/3232668#3232668

>

Author : Dilip Singh

Profile : https://supportforums.cisco.com/people/dksingh

>

Message:

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