Solved: Re: Fax sending not possible with VG202 (SCCP) - But Receiving Fax is working

Kevin_W · ‎04-11-2019

Hello Community,

do you have any idea how to troubleshoot or solve this issue/scenario?

We have a Cisco VG202XM, which has a fax connected on port 0/0.
The PSTN gateway is a virtual Cube.

The Call Manager is running with version 11.5.

We can successfully receive a fax, but we are not able to send.

While trying to send we will get with debug voip ccapi inout:

Apr 11 13:47:27.900: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore:
Calling Number=, Called Number=, Voice-Interface=0x873FA61C,
Timeout=TRUE, Peer Encap Type=ENCAP_VOICE, Peer Search Type=PEER_TYPE_VOICE,
Peer Info Type=DIALPEER_INFO_SPEECH
Apr 11 13:47:27.900: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore:
Match Rule=DP_MATCH_PORT;
Apr 11 13:47:27.900: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore:
Result=Success(0) after DP_MATCH_PORT; Incoming Dial-peer=999200
Apr 11 13:47:27.900: //-1/xxxxxxxxxxxx/DPM/dpMatchSafModulePlugin:
dialstring=NULL, saf_enabled=0, saf_dndb_lookup=0, dp_result=0
Apr 11 13:47:27.900: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerSPI:exit@7793
Apr 11 13:47:27.904: //-1/2DDA9F048029/CCAPI/cc_api_display_ie_subfields:
cc_api_call_setup_ind_common:
cisco-username=
----- ccCallInfo IE subfields -----
cisco-ani=
cisco-anitype=0
cisco-aniplan=0
cisco-anipi=0
cisco-anisi=0
dest=
cisco-desttype=0
cisco-destplan=0
cisco-rdie=FFFFFFFF
cisco-rdn=
cisco-rdntype=0
cisco-rdnplan=0
cisco-rdnpi=0
cisco-rdnsi=0
cisco-redirectreason=0 fwd_final_type =0
final_redirectNumber =
hunt_group_timeout =0

Apr 11 13:47:27.908: //-1/2DDA9F048029/CCAPI/cc_api_call_setup_ind_common:
Interface=0x873FA61C, Call Info(
Calling Number=,(Calling Name=)(TON=Unknown, NPI=Unknown, Screening=Not Screened, Presentation=Allowed),
Called Number=(TON=Unknown, NPI=Unknown),
Calling Translated=FALSE, Subscriber Type Str=RegularLine, FinalDestinationFlag=FALSE,
Incoming Dial-peer=999200, Progress Indication=ORIGINATING SIDE IS NON ISDN(3), Calling IE Present=FALSE,
Source Trkgrp Route Label=, Target Trkgrp Route Label=, CLID Transparent=FALSE), Call Id=-1
Apr 11 13:47:27.908: //-1/2DDA9F048029/CCAPI/ccCheckClipClir:
In: Calling Number=(TON=Unknown, NPI=Unknown, Screening=Not Screened, Presentation=Allowed)
Apr 11 13:47:27.908: //-1/2DDA9F048029/CCAPI/ccCheckClipClir:
Out: Calling Number=(TON=Unknown, NPI=Unknown, Screening=Not Screened, Presentation=Allowed)
Apr 11 13:47:27.908: //-1/xxxxxxxxxxxx/CCAPI/cc_get_feature_vsa:

Apr 11 13:47:27.908: :cc_get_feat
Voicegateway_VG202#ure_vsa malloc success
Apr 11 13:47:27.908: //-1/xxxxxxxxxxxx/CCAPI/cc_get_feature_vsa:

Apr 11 13:47:27.908: cc_get_feature_vsa count is 1
Apr 11 13:47:27.908: //-1/xxxxxxxxxxxx/CCAPI/cc_get_feature_vsa:

Apr 11 13:47:27.908: :FEATURE_VSA attributes are: feature_name:0,feature_time:2278519792,feature_id:13
Apr 11 13:47:27.908: //13/2DDA9F048029/CCAPI/cc_api_call_setup_ind_common:
Set Up Event Sent;
Call Info(Calling Number=(TON=Unknown, NPI=Unknown, Screening=Not Screened, Presentation=Allowed),
Called Number=(TON=Unknown, NPI=Unknown))
Apr 11 13:47:27.912: //13/2DDA9F048029/CCAPI/cc_process_call_setup_ind:
Event=0x873AAC00
Apr 11 13:47:27.912: //13/2DDA9F048029/CCAPI/cc_process_call_setup_ind:
>>>>CCAPI handed cid 13 with tag 999200 to app "stcapp"
Apr 11 13:47:27.912: //13/2DDA9F048029/CCAPI/ccCallSetupAck:
Call Id=13
Apr 11 13:47:27.912: //13/2DDA9F048029/CCAPI/cc_api_set_transfer_info:
Transfer Number=, Transfer Reason=0x0
Apr 11 13:47:27.956: //13/2DDA9F048029/CCAPI/ccGenerateToneInfo:
Stop Tone On Digit=FALSE, Tone=Internal Dial Tone,
Tone Direction=Network, Params=0x0, Call Id=13
Apr 11 13:47:27.956: //13/2DDA9F048029/CCAPI/ccCallReportDigits:
(callID=0xD, digit_event=0x1, enable=TRUE, consume=FALSE)
Apr 11 13:47:27.956: //13/2DDA9F048029/CCAPI/ccCallReportDigits:
Enabled=TRUE, Call Id=13
Apr 11 13:47:27.956: //13/2DDA9F048029/CCAPI/cc_api_call_report_digits_done:
(vdbPtr=0x873FA61C, callID=0xD, disp=0, digit_event=0x1, enable=TRUE, consume=FALSE)
Apr 11 13:47:27.956: //13/2DDA9F048029/CCAPI/cc_api_call_report_digits_done:
Enabled=TRUE, Disposition=0x0, Interface=0x873FA61C, Call Id=13
Apr 11 13:47:27.956: //13/2DDA9F048029/CCAPI/cc_api_call_report_digits_done:
Call Entry(Initial Digit Timeout=15000(ms), Inter Digit Timeout=10000(ms))
Voicegateway_VG202#
Apr 11 13:47:33.376: //13/2DDA9F048029/CCAPI/cc_api_call_disconnected:
Cause Value=16, Interface=0x873FA61C, Call Id=13
Apr 11 13:47:33.376: //13/2DDA9F048029/CCAPI/cc_api_call_disconnected:
Call Entry(Responsed=FALSE, Cause Value=16, Retry Count=0)
Apr 11 13:47:33.376: //13/2DDA9F048029/CCAPI/ccRestartDigitTimeoutMsec:
Digit Timeout=0, Call Id=13
Apr 11 13:47:33.376: //13/2DDA9F048029/CCAPI/ccGenerateToneInfo:
Stop Tone On Digit=FALSE, Tone=Null,
Tone Direction=Network, Params=0x0, Call Id=13
Apr 11 13:47:33.376: //13/2DDA9F048029/CCAPI/ccRestartDigitTimeoutMsec:
Digit Timeout=0, Call Id=13
Apr 11 13:47:33.412: //13/2DDA9F048029/CCAPI/ccGenerateToneInfo:
Stop Tone On Digit=FALSE, Tone=Null,
Tone Direction=Network, Params=0x0, Call Id=13
Apr 11 13:47:33.416: //13/2DDA9F048029/CCAPI/ccCallFeature:
Feature Type=34, Call Id=13
Apr 11 13:47:33.416: //13/2DDA9F048029/CCAPI/ccCallDisconnect:
Cause Value=16, Tag=0x0, Call Entry(Previous Disconnect Cause=0, Disconnect Cause=16)
Apr 11 13:47:33.416: //13/2DDA9F048029/CCAPI/ccCallDisconnect:
Cause Value=16, Call Entry(Responsed=TRUE, Cause Value=16)
Apr 11 13:47:33.416: //13/2DDA9F048029/CCAPI/cc_api_get_transfer_info:
Transfer Number=NULL
Voicegateway_VG202#
Apr 11 13:47:33.420: //13/2DDA9F048029/CCAPI/cc_api_call_disconnect_done:
Disposition=0, Interface=0x873FA61C, Tag=0x0, Call Id=13,
Call Entry(Disconnect Cause=16, Voice Class Cause Code=0, Retry Count=0)
Apr 11 13:47:33.420: //13/2DDA9F048029/CCAPI/cc_api_call_disconnect_done:
Call Disconnect Event Sent
Apr 11 13:47:33.420: //-1/xxxxxxxxxxxx/CCAPI/cc_free_feature_vsa:

Apr 11 13:47:33.420: :cc_free_feature_vsa freeing 87CF73E8
Apr 11 13:47:33.420: //-1/xxxxxxxxxxxx/CCAPI/cc_free_feature_vsa:

Apr 11 13:47:33.420: vsacount in free is 0

Our VG202 configuration is:

version 15.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname XXXXX
!
boot-start-marker
boot system flash:vg20xxm-ipvoice-mz.154-3.M5.bin
boot system flash:vg20xxm-ipvoice-mz.156-3.M3a.bin
boot-end-marker
!
!
!
no aaa new-model
clock timezone GMT 1 0
clock summer-time MEST recurring last Sun Mar 2:00 last Sun Oct 3:00
!
!
!
!
!
!
!
!
ip cef
no ipv6 cef
!
stcapp ccm-group 1
stcapp
!
stcapp supplementary-services
port 0/0
fallback-dn +49XYZ
!
stcapp call-control mode feature
!
!
!
!
voice service voip
fax protocol none
modem passthrough nse codec g711alaw
!
!
!
!
!
voice-card 0
!
archive
log config
hidekeys
username root privilege 15 secret 0 XXXX
!
!
!
!
!
!
interface FastEthernet0/0
ip address A.B.C.D 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
ip default-gateway "DefaultGateway"
ip forward-protocol nd
!
no ip http server
ip route 0.0.0.0 0.0.0.0 "DefaultGateway"
!
!
!
control-plane
!
!
voice-port 0/0
no vad
compand-type a-law
no comfort-noise
cptone DE
timeouts ringing infinity
bearer-cap 3100Hz
caller-id enable
!
voice-port 0/1
timeouts ringing infinity
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
sccp local FastEthernet0/0
sccp ccm "cucm01-IP" identifier 2 version 7.0
sccp ccm "cucm02-IP" identifier 1 version 7.0
sccp
!
sccp ccm group 1
bind interface FastEthernet0/0
associate ccm 1 priority 1
associate ccm 2 priority 2
!
!
ccm-manager sccp local FastEthernet0/0
!
dial-peer voice 999200 pots
no tone dialtone remote-onhook
tone busytone remote-onhook
service stcapp
port 0/0
!
dial-peer voice 999201 pots
no tone dialtone remote-onhook
tone busytone remote-onhook
service stcapp
port 0/1
!
!
!
line con 0
no modem enable
line aux 0
line vty 0 4
exec-timeout 30 0
privilege level 15
logging synchronous
login local
transport input telnet
!
ntp server XXXX prefer
ntp server XXXX
!
end

If you need to know any further information (e.g. Call Manager settings), feel free to ask.

Thank you very much for any help/hint.

Kevin_W · ‎05-08-2019

Hello everybody,

For those, who are facing the same problem, I solved the issue:

Following is the correct configuration (compared to the config in my post before):
voice service voip
fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback cisco
modem relay nse codec g711ulaw gw-controlled

By the way: Also the fax device was not working properly. With an other fax device and the configuration above, everything works. Please be aware, that also the configuration of the fax (prefix and connection) needs to be correct.

View solution in original post

bsrohan · ‎04-11-2019

Hello,

You can check this troubleshooting guide, it has a detailed information on the message flow and debug messages to look,

https://www.cisco.com/c/en/us/support/docs/voice/skinny-call-control-protocol-sccp/118646-technote-sccp-00.html

Hope this Helps !

-Rohan
*** Please rate helpful posts ***

Kevin_W · ‎05-08-2019

Hello everybody,

For those, who are facing the same problem, I solved the issue:

Following is the correct configuration (compared to the config in my post before):
voice service voip
fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback cisco
modem relay nse codec g711ulaw gw-controlled

By the way: Also the fax device was not working properly. With an other fax device and the configuration above, everything works. Please be aware, that also the configuration of the fax (prefix and connection) needs to be correct.