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PSTN Calls disconnected as soon as answered (Timeout h245 conn)

Hello guys!

I have setup a new E1 circuit (Digital R2) and an FXO for an analog line. Inbound PSTN Calls have been completed successfully, however disconnected after 4 seconds. We can hear a fast busy tone.

Outbound calls started working as soon as I enabled Fast Start, but no success with inbound.

Call flow:  IP Phone <------> CUCM <------> H323 GW <-----> PSTN Phones.

Software Version: 9.1.1.20000-5

IOS Version: 15.3(3)M  (I have just updated)

Looking at logs I can see a "call disconnect cause = 47" and a "Timeout h245 conn" message:

"//328/00E45EEB0800/CCAPI/ccCallDisconnect:

   Cause Value=47, Tag=0x0, Call Entry(Previous Disconnect Cause=0, Disconnect Cause=47)".

"Sep 24 13:10:42.822: %VOICE_IEC-3-GW: H323: Internal Error (Timeout h245 conn): IEC=1.1.183.5.62.0 on callID 342 GUID=8874AF85245111E382D9A77CF56C0432".

Since we are setting up this scenario, the E1 circuit has been disconnected and I have used the FXO port for the tests. Same issue for FXO and E1 port.

Attached some other debugs I collected during an inbound call.

Any help will be appreciated.

Thanks!

9 REPLIES
VIP Super Bronze

PSTN Calls disconnected as soon as answered (Timeout h245 conn)

You should start by looking at the h225 and h245 negotiations..pls send the output of the ff:

debug h225 asn1

debug h245 asn1

debug ip tcp transaction

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New Member

Re: PSTN Calls disconnected as soon as answered (Timeout h245 co

Hi aokanlawon, thank you very much for your answer.

I enabled the following debugs and called the PSTN number (inbound call). The call took same behavior and got disconnected after 5 seconds.

debug h225 asn1

debug h245 asn1

debug vpm signal

debug cch323 h245

debug h245 event

debug voice ccapi inout

debug voip ccapi inout

debug vpm signal

debug ip tcp packet address 10.150.160.14 (CUCM IP)

debug h245 events

debug h323 asn1

debug ip tcp transactions 

Please find attached the log file.

Regards

Re: PSTN Calls disconnected as soon as answered (Timeout h245 co


Hi.
You are receiving a cause code 47 which means codec mismatch.
Please verify your dialpeer configuration a ensure that you are selecting the right codece that should match the one selected on region assigned to the device pool where the voice gateway is located.

HTH
Regards

Carlo

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Sent from Cisco Technical Support iPhone App

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New Member

Re: PSTN Calls disconnected as soon as answered (Timeout h245 co

Hi Carlo, thank you for your time.

I have tested all sort of codecs in the dial-peer and also checked the Region in CUCM. I don't believe it's a codec issue since I can answer the call, hear the other part and pressing the "?" button I can see the call is being streamed through G711.

Still facing same issue and no luck with researchs yet.

Regards

Re: PSTN Calls disconnected as soon as answered (Timeout h245 co

Can you post your running config?

New Member

Re: PSTN Calls disconnected as soon as answered (Timeout h245 co

Hi Amine. After many changes and tries to solve the issue, bellow is my show run:

boot-start-marker

boot system flash0:c2900-universalk9-mz.SPA.153-3.M.bin

boot-end-marker

!

aqm-register-fnf

!

card type e1 0 0

enable secret 5 $1$u0T8$.0NyjEnLJCbmxtqTC/g0E/

!

no aaa new-model

clock timezone BR -3 0

clock calendar-valid

network-clock-participate wic 0

network-clock-select 1 E1 0/0/0

!

ip cef

no ipv6 cef

multilink bundle-name authenticated

!

!

password encryption aes

!

voice-card 0

dspfarm

dsp services dspfarm

!

voice service voip

ip address trusted list

  ipv4 10.150.160.13 255.255.255.255

  ipv4 10.150.160.14 255.255.255.255

no ip address trusted authenticate

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none

h323

  no h225 timeout keepalive

  call preserve

  h245 timeout olc 30

  h245 timeout tcs 30

!

voice class codec 1

codec preference 1 g722-64

codec preference 2 g711ulaw

codec preference 3 g711alaw

codec preference 4 g729r8

codec preference 5 g729br8

!

voice class h323 1

  h225 timeout tcp establish 20

  call start fast

  call preserve

!

voice iec syslog

!

voice statistics type iec

voice statistics time-range since-reset

!

license udi pid CISCO2921/K9 sn FTX1706AJ7Z

license accept end user agreement

hw-module pvdm 0/0

!

hw-module pvdm 0/1

!

hw-module pvdm 0/2

!

username ADMIN privilege 15 secret 5 $1$hDuL$jYxSuQ05JuUINUXkVUYQ0.

!

redundancy

!

controller E1 0/0/0

framing NO-CRC4

ds0-group 0 timeslots 1-15,17-31 type r2-digital r2-compelled ani

cas-custom 0

  country brazil

  category 2

  answer-signal group-b 1

description # Telefonica +55 11 4196-5522 #

!

interface Embedded-Service-Engine0/0

no ip address

shutdown

!

interface GigabitEthernet0/0

description ## CONNECTED TO ##

ip address 10.151.160.10 255.255.255.0

no ip redirects

no ip route-cache

duplex full

speed 100

h323-gateway voip interface

h323-gateway voip bind srcaddr 10.151.160.10

!

interface GigabitEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface GigabitEthernet0/2

no ip address

shutdown

duplex auto

speed auto

!

ip forward-protocol nd

!

no ip http server

no ip http secure-server

!

ip route 0.0.0.0 0.0.0.0 10.151.160.1

!

control-plane

!

voice-port 0/0/0:0

cptone BR

timeouts call-disconnect 1

!

voice-port 0/1/0

no battery-reversal

cptone BR

connection plar opx 5819

!

voice-port 0/1/1

!

voice-port 0/1/2

!

voice-port 0/1/3

!

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 GigabitEthernet0/0

sccp ccm 10.150.160.13 identifier 2 version 7.0

sccp ccm 10.150.160.14 identifier 1 version 7.0

sccp

!

sccp ccm group 1

bind interface GigabitEthernet0/0

associate ccm 1 priority 1

associate ccm 2 priority 2

associate profile 30 register MTP-HO

associate profile 20 register XCD-HO

associate profile 10 register CFB-HO

keepalive retries 5

switchback method graceful

switchback interval 180

!

dspfarm profile 20 transcode 

description HO Transcoding

codec g722-64

codec g729abr8

codec g729ar8

codec g711alaw

codec g711ulaw

maximum sessions 8

associate application SCCP

!

dspfarm profile 10 conference 

description HO Conference Bridge

codec g722-64

codec g729abr8

codec g729ar8

codec g711alaw

codec g711ulaw

maximum sessions 4

associate application SCCP

!

dspfarm profile 30 mtp 

codec g711ulaw

maximum sessions software 30

associate application SCCP

!

dial-peer voice 1 pots

description # PSTN R2 Telefonica  #

incoming called-number .

direct-inward-dial

port 0/1/0

!

dial-peer voice 10 pots

description Local Fixo

destination-pattern 0[2-5].......

port 0/1/0

forward-digits 8

!

dial-peer voice 20 pots

description Local Celular

destination-pattern 09........

port 0/1/0

forward-digits 9

!

dial-peer voice 30 pots

description 0800

destination-pattern 00800T

port 0/0/0:0

prefix 0800

!

dial-peer voice 40 pots

description 0300

destination-pattern 00300.......

port 0/0/0:0

prefix 0300

!

dial-peer voice 50 pots

description Emergencia

destination-pattern 019.

port 0/0/0:0

prefix 19

!

dial-peer voice 60 pots

description Servicos

destination-pattern 01T

port 0/0/0:0

prefix 1

!

dial-peer voice 70 pots

description Longa Distancia Nacional

destination-pattern 00T

port 0/0/0:0

prefix 015

!

dial-peer voice 80 pots

description Longa Distancia Internacional

destination-pattern 000T

port 0/0/0:0

prefix 0015

!

dial-peer voice 21 pots

description Local Celular Nextel

destination-pattern 07.......

port 0/0/0:0

forward-digits 8

!

dial-peer voice 11 pots

description Local Fixo

destination-pattern 0011[2-5].......

port 0/0/0:0

!

dial-peer voice 22 pots

description Local Celular

destination-pattern 00119........

port 0/0/0:0

forward-digits 9

!

dial-peer voice 71 pots

description Longa Distancia Nacional Celular DDD 12 a 19

destination-pattern 001[2-9]9........

port 0/0/0:0

forward-digits 14

prefix 015

!

dial-peer voice 72 pots

description Longa Distancia Nacional Areas Conurbadas SP

destination-pattern 00..11[2-5].......

port 0/0/0:0

forward-digits 13

prefix 015

!

dial-peer voice 7 voip

description CUCM Extensions

destination-pattern 4..

session target ipv4:10.150.160.14

voice-class h323 1

dtmf-relay h245-alphanumeric

no vad

!

dial-peer voice 6 voip

description CUCM Extensions

destination-pattern 5...

session target ipv4:10.150.160.14

voice-class codec 1 offer-all

voice-class h323 1

dtmf-relay h245-signal h245-alphanumeric

no vad

!

!

gateway

media-inactivity-criteria all

timer receive-rtcp 6

timer receive-rtp 1200

!

!

!

gatekeeper

shutdown

!

!

call-manager-fallback

secondary-dialtone 0

max-conferences 4 gain -6

transfer-system full-consult

timeouts interdigit 4

ip source-address 10.151.160.10 port 2000

max-ephones 10

max-dn 8

system message primary Contingencia HO

system message secondary Contingencia HO

transfer-pattern .T

keepalive 20

time-format 24

date-format dd-mm-yy

!

end

Thanks

Re: PSTN Calls disconnected as soon as answered (Timeout h245 co

Try to make your config to match this:

voice class codec 1

codec preference 1 g711ulaw

codec preference 2 g711alaw

codec preference 3 g729r8

voice class h323 1

h225 timeout tcp establish 3

h225 timeout setup 3

! Add this to all dial-peers expect dial-peer 1

progress_ind setup enable 3

progress_ind progress enable 8

progress_ind connect enable 8

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New Member

Re: PSTN Calls disconnected as soon as answered (Timeout h245 co

Hi Amine. Thank you for your help.

I did exactly what you suggested. Removed voice class codec/h323 and re-configured them. Also, changed dial-peers that point to CUCM, since all others, except dial-peer 1, are intended for outbound calls.

Now, dial-peer looks like this:

dial-peer voice 6 voip

description CUCM Extensions

destination-pattern 5...

progress_ind setup enable 3

progress_ind progress enable 8

progress_ind connect enable 8

session target ipv4:10.150.160.14

dtmf-relay h245-signal h245-alphanumeric

no vad

Voice class:

voice class codec 1

codec preference 1 g711ulaw

codec preference 2 g711alaw

codec preference 3 g729r8

!

voice class h323 1

  h225 timeout tcp establish 3

  h225 timeout setup 3

And finally, Region Codec Preference List, wich is associated with the device pool used by gateway and internal phones:

No success yet. Any other suggestion? Inbound fast start is enable in both CUCM and Voice Gateway (Already upgraded IOS)

New Member

Re: PSTN Calls disconnected as soon as answered (Timeout h245 co

Hi folks, good News!

I talked to the guy who manages the firewall (Sonicwall) and we detected a parameter wich was blocking H323 signalization. After uncheck it, the calls started working normally.

ps: All tcp/udp ports were open, even though the fw was blocking signalization.

Thank you very for your time!

Best Regards,

Flavio

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