[cisco-voip] Fax receiving issue

Bob Fronk Bob at btrfronk.com
Tue Oct 16 12:34:24 EDT 2012


Although a bit late, I wanted to post the resolution.

It was simple, but not sure why we had to make this change.  Shortly after posting about the initial problem, all of our fax numbers stopped working (multiple PRIs from multiple sites)  Voice continued to work fine.

The fix was to uncheck "media termination required" on the Trunk.  The trunk was setup in 2009 and had not been touched since then.  I am not sure why this suddenly became a problem, but suspect it may have had something to do with a Windows update on the Esker Fax server.

Thanks to those that offered help both on-list and off-list.

Bob

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Bob Fronk
Sent: Tuesday, October 09, 2012 5:42 PM
To: Ryan Ratliff
Cc: cisco-voip voyp list
Subject: Re: [cisco-voip] Fax receiving issue

Here is the full setup... I failed to catch it in my cut/paste earlier:

*Oct  9 21:53:39.303: ISDN Se0/1/0:23 Q931: RX <- SETUP pd = 8  callref = 0x0001
        Bearer Capability i = 0x8090A2
                Standard = CCITT
                Transfer Capability = Speech
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA98381
                Exclusive, Channel 1
        Facility i = 0x9F8B0100A117020101020100800F444156495320482E20454C4C494F54
                Protocol Profile =  Networking Extensions
                0xA117020101020100800F444156495320482E20454C4C494F54
                Component = Invoke component
                        Invoke Id = 1
                        Operation = CallingName
                                Name Presentation Allowed Extended
                                Name = NNNNNNNNNN
        Calling Party Number i = 0x2181, 'XXXXXXXXXX'
                Plan:ISDN, Type:National
        Called Party Number i = 0xA1, 'XXXXXXXXXX'
                Plan:ISDN, Type:National
*Oct  9 21:53:39.415: ISDN Se0/1/0:23 Q931: TX -> CALL_PROC pd = 8  callref = 0x8001
        Channel ID i = 0xA98381
                Exclusive, Channel 1
*Oct  9 21:53:39.415: ISDN Se0/1/0:23 Q931: TX -> ALERTING pd = 8  callref = 0x8001
        Progress Ind i = 0x8088 - In-band info or appropriate now available
*Oct  9 21:53:39.655: ISDN Se0/1/0:23 Q931: TX -> CONNECT pd = 8  callref = 0x8001
        Display i = 'FAX'
*Oct  9 21:53:39.691: ISDN Se0/1/0:23 Q931: RX <- CONNECT_ACK pd = 8  callref = 0x0001
*Oct  9 21:53:40.495: ISDN Se0/1/0:23 Q931: TX -> DISCONNECT pd = 8  callref = 0x8001
        Cause i = 0x8AC1 - Bearer capability not implemented
*Oct  9 21:53:40.539: ISDN Se0/1/0:23 Q931: RX <- RELEASE pd = 8  callref = 0x0001
        Cause i = 0x82C1 - Bearer capability not implemented
*Oct  9 21:53:40.735: ISDN Se0/1/0:23 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x8001
*



Here is the config:


!
boot-start-marker
boot system flash:c2800nm-adventerprisek9-mz.124-24.T4.bin
boot-end-marker
!
card type t1 0 1
logging message-counter syslog
logging buffered 51200 warnings
!
no aaa new-model
network-clock-participate wic 1
network-clock-select 1 T1 0/1/0
!
dot11 syslog
ip source-route
!
!
ip cef
no ip dhcp use vrf connected
ip dhcp excluded-address 10.1.3.1 10.1.3.5
ip dhcp excluded-address 10.1.3.225 10.1.3.254
!
ip dhcp pool VOICE
   network 10.1.3.0 255.255.255.0
   default-router 10.1.3.1
   option 150 ip 10.1.2.254
!
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
isdn switch-type primary-ni
!
!
!
voice service voip
fax protocol t38 ls-redundancy 2 hs-redundancy 0 fallback none
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
voice-card 0
!
archive
log config
  hidekeys
!
!
!
!
!
controller T1 0/1/0
cablelength long 0db
pri-group timeslots 1-24 service mgcp
!
!
!
!
!
interface GigabitEthernet0/0
description  Voice Gateway
 ip address 10.1.3.1 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1/0:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice modem
isdn bind-l3 ccm-manager
no cdp enable
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 10.1.3.254
ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
!
!
logging trap debugging
logging source-interface GigabitEthernet0/0
!
!
!
!
!
!
control-plane
!
!
!
voice-port 0/0/0
!
voice-port 0/0/1
!
voice-port 0/1/0:23
echo-cancel coverage 48
!
voice-port 0/2/0
cptone C1
timing hookflash-out 50
!
voice-port 0/2/1
cptone C1
timing hookflash-out 50
!
ccm-manager fallback-mgcp
ccm-manager mgcp
no ccm-manager fax protocol cisco
ccm-manager music-on-hold
ccm-manager config server 10.1.2.254
ccm-manager config
ccm-manager download-tones
!
mgcp
mgcp call-agent 10.1.2.254 2427 service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
mgcp modem passthrough voip mode nse
mgcp package-capability rtp-package
mgcp package-capability sst-package
mgcp package-capability pre-package
mgcp default-package mt-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp validate call-agent source-ipaddr
mgcp fax rate 14400
mgcp fax t38 inhibit
mgcp rtp payload-type g726r16 static
mgcp bind control source-interface GigabitEthernet0/0
mgcp bind media source-interface GigabitEthernet0/0
!
mgcp profile default
!
!
!
dial-peer voice 1000 pots
preference 1
destination-pattern 911
no digit-strip
port 0/2/0
!
dial-peer voice 1001 pots
preference 1
destination-pattern 9[2-9]11
port 0/2/0
!
dial-peer voice 1002 voip
preference 1
destination-pattern .T
session target ipv4:10.1.244.1
dtmf-relay h245-alphanumeric
no vad
!
dial-peer voice 999021 pots
service mgcpapp
port 0/2/1
!
dial-peer voice 999020 pots
service mgcpapp
port 0/2/0
!
dial-peer voice 999000 pots
service mgcpapp
port 0/0/0
!
dial-peer voice 999010 pots
service mgcpapp
!
!
!
!
call-manager-fallback
secondary-dialtone 9
max-conferences 4 gain -6
transfer-system full-consult
limit-dn 7940 2
limit-dn 7960 6
ip source-address 10.1.3.1 port 2000
max-ephones 64
max-dn 128 dual-line
transfer-pattern .T
transfer-pattern 1...
transfer-pattern 2...
default-destination 1700
voicemail 7900
translate called 1
call-forward busy 1700
call-forward noan 1700 timeout 20
moh music-on-hold.au
!
!
line con 0
exec-timeout 0 0
login local
line aux 0
line vty 0 4
exec-timeout 0 0
privilege level 15
login local
transport input telnet ssh
line vty 5 15
access-class 23 in
privilege level 15
login local
transport input telnet ssh
!
scheduler allocate 20000 1000
end

From: Ryan Ratliff [mailto:rratliff at cisco.com]<mailto:[mailto:rratliff at cisco.com]>
Sent: Tuesday, October 09, 2012 4:38 PM
To: Bob Fronk
Cc: James Buchanan; cisco-voip voyp list
Subject: Re: [cisco-voip] Fax receiving issue

The entire Setup is missing, which is where the bearer cap that they are sending you would be displayed.

*Oct  9 18:33:33.903: ISDN Se0/1/0:23 Q931: TX -> DISCONNECT pd = 8  callref = 0x8001
        Cause i = 0x80C1 - Bearer capability not implemented

-Ryan

On Oct 9, 2012, at 3:05 PM, "Buchanan, James" <jbuchanan at presidio.com<mailto:jbuchanan at presidio.com>> wrote:


Your debug doesn't seem to indicate an inbound DNIS from your carrier. Can you get the carrier to trap the call on their end and tell you what they are sending you?



James Buchanan | Sr. Network Engineer
Presidio | www.presidio.com<http://www.presidio.com/>
12 Cadillac Drive Suite 130, Brentwood, TN 37027
D: 615.866.5729 | C: 931.797.2326 | F: 615.866.5781 | jbuchanan at presidio.com<mailto:jbuchanan at presidio.com>




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From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net<mailto:voip-bounces at puck.nether.net>] On Behalf Of Bob Fronk
Sent: Tuesday, October 09, 2012 8:25 PM
To: 'cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>'
Subject: [cisco-voip] Fax receiving issue

CUCM=6.1.2.1
Router is 2851 with  IOS c2800nm-adventerprisek9-mz.124-24.T4

We have several DID numbers on a PRI that point to our Esker Fax software via CUCM (Trunk).  This has all been working fine for a very long time.

Today, or sometime over the weekend, something changed (not on our end) and now any sending faxes get a fast busy when calling any of our fax DID numbers.

ISDN q931 debug shows =

*Oct  9 18:33:32.851: ISDN Se0/1/0:23 Q931: TX -> CALL_PROC pd = 8  callref = 0x8001
        Channel ID i = 0xA98381
                Exclusive, Channel 1
*Oct  9 18:33:32.855: ISDN Se0/1/0:23 Q931: TX -> ALERTING pd = 8  callref = 0x8001
        Progress Ind i = 0x8088 - In-band info or appropriate now available
*Oct  9 18:33:33.091: ISDN Se0/1/0:23 Q931: TX -> CONNECT pd = 8  callref = 0x8001
        Display i = 'FAX'
*Oct  9 18:33:33.123: ISDN Se0/1/0:23 Q931: RX <- CONNECT_ACK pd = 8  callref = 0x0001
*Oct  9 18:33:33.903: ISDN Se0/1/0:23 Q931: TX -> DISCONNECT pd = 8  callref = 0x8001
        Cause i = 0x80C1 - Bearer capability not implemented
*Oct  9 18:33:33.939: ISDN Se0/1/0:23 Q931: RX <- RELEASE pd = 8  callref = 0x0001
        Cause i = 0x82C1 - Bearer capability not implemented
*Oct  9 18:33:34.067: ISDN Se0/1/0:23 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x8001

Since the call never connects, there are no fax relay t30 debugs to show.

The PRI provider wants to know what we changed, and we changed nothing.  Something on their end must have been changed, but I do now know what direction to send them in.

I appreciate any input

Bob



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