E1 R2 - call setup and troubleshooting

dcobra · ‎05-02-2007

Router: Cisco 3725

IOS Version: 12.4(10a)

IOS image loaded: "flash:c3725-spservicesk9-mz.124-10a.bin"

Sometimes the E1 doesn't put channels in idle status, so it doesn't stay ready to receive next call.

I saw a lot of good information in CCO doc - E1 R2 Signaling Configuration and Troubleshooting, but the IOS version running in 3725 router do not have the same debugs from doc at URL:

http://www.cisco.com/en/US/tech/tk652/tk653/technologies_configuration_example09186a00800ad389.shtml

The carrier told us: therea are a bit ABCD error when the call has been diconnected (here in Brazil only bits CD matter to signaling).

When carrier sends "CLEAR_FORWARD" the router should be answer with CD=01 bits, but it never happens. In vision of carrier (Voice Service Provider).

Anybody knows how can I see the E1 signaling bits using IOS 12.4(10a)?

Darcio.

paolo bevilacqua · ‎05-02-2007

Hi,

E1 R2 has got many bug fixes, could you upgrade to 12.4(13b) first and then if the problem continues we can look at your configuration any why the brazil country settings do not work ?

You could also try a latest 12.4T that is not less stable than 12.4 mainline.

gogasca · ‎05-04-2007

R2_Q421_CLR_BWD_OUT 0x0C /* 1100 */

Could you please post your controller config and cas-custom...make sure you use country defaults.

Once this is done, you can troubleshoot using:

'debug voip vtsp all'

'debug vpm signal'

'debug voice ccapi inout'

teodorgeorgiev · ‎05-07-2007

Does the "debug cas" command work?

Usually the AB bits matter. And Cisco give you the opportunity to change the CD bit values your gateway is sending.

dcobra · ‎05-08-2007

People,

In this particular IOS version some debug haven't present like "debug cas". :-(

But after several customization test with carrier, we reach a good one configuration where the carrier is glad with all signaling information.

This gateway handles calls together a CCM (4.1(3)) cluster with 2 servers.

The end configuration for this case (connected to Brasil Telecom carrier) is:

!

! All configuration related with

! voice signaling

!

voice class h323 1

h225 timeout tcp establish 3

!

controller E1 1/3

framing NO-CRC4

clock source line primary

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

cas-custom 1

country brazil

release-guard-time 500

category 2

answer-signal group-b 1

ani-digits min 7 max 10

description CONNECTED TO 0800

!

interface FastEthernet0/0

description SOURCE INTERFACE TO CCM H323-GTW

ip address 10.15.4.16 255.255.255.0

no keepalive

h323-gateway voip interface

h323-gateway voip bind srcaddr 10.15.4.16

!

voice-port 1/3:1

no vad

no comfort-noise

cptone BR

description 0800

!

dial-peer voice 800 pots

incoming called-number 912

direct-inward-dial

port 1/3:1

!

dial-peer voice 801 voip

destination-pattern 912

preference 1

session target ipv4:10.15.16.17

dtmf-relay h245-alphanumeric

!

dial-peer voice 802 voip

preference 2

destination-pattern 912

session target ipv4:10.15.16.16

dtmf-relay h245-alphanumeric

!

Thanks for all for support, and I HTH somebody in future connections with Brasil Telecom carrier.

cheers.

Darcio.

P.S.: If this configuration sample was helpful, don't forget rate this post, please!

paolo bevilacqua · ‎05-08-2007

Good info, thanks!

nosferatus · ‎08-28-2010


hi, y need help for incoming calls, for e1 in mexico i try receive but not 
work the tone is busy, always i try configuring dial-peer for incoming 
calls but not work. The outgoing calls work fine.

controller E1 0/0/0
framing NO-CRC4
clock source internal
ds0-group 1 timeslots 1-12 type r2-digital r2-compelled ani
cas-custom 1
country telmex use-defaults
category 2
answer-signal group-b 1
description """ E1 VOICE """
!

voice-port 0/0/0:1
cptone MX
!
dial-peer voice 21 pots
description local
translation-profile outgoing CALLER_ID_TRANSLATION_PROFILE
preference 3
destination-pattern 9.......
direct-inward-dial
port 0/0/0:1
forward-digits 7


dial-peer voice 1000 pots
description incoming calls
translation-profile incoming Incoming_Calls_5700
incoming called-number 467....
direct-inward-dial
port 0/0/0:1
forward-digits all

voice translation-rule 10
rule 2 /4050/ /124/
rule 2 /4051/ /124/
rule 3 /4052/ /124/
rule 4 /4053/ /124/
rule 5 /4054/ /124/
rule 6 /4055/ /124/
rule 7 /4056/ /124/
rule 8 /4057/ /124/
rule 9 /4058/ /124/
rule 10 /4059/ /124/
!
voice translation-profile Incoming_Calls_5700
translate called 10

thanks for your help

remi-reszka · ‎11-13-2010

Hi nosferatus,

Are you still having problems with incoming dial-peers on E1 Telmex?

Regards,

nosferatus · ‎11-14-2010

Hi remi-rezka.

thanks for you attention but the problem is Ok now

best regards.

remi-reszka · ‎11-14-2010

hola nosferatus ,

I am glad you solved your issue. You know, I am setting up a trunk E1 with Telmex on my client's UC560. Telmex did not give us any parameters how to set up the trunk. I did it with "r2-compelled ani" and it works however all incoming calls from outside do not present caller ID (ANI), they appear as "Desconocido". Would you be kind to share your E1 configuration for Telmex service? Maybe I am also doing something wrong with the incoming dial-peer. It would be great if you could share your config.

Many thanks in advance.

Remi

nosferatus · ‎11-14-2010

hi Remi

this is my configuration

controller E1 0/0/0
framing NO-CRC4
line-termination 75-ohm
ds0-group 0 timeslots 1-10 type r2-digital r2-compelled ani
cas-custom 0
country telmex
category 2
answer-signal group-b 1
dnis-digits min 1 max 16
ani-digits min 0 max 10
ani-timeout 1
timer interdigit incoming 1000
groupa-callerid-end
description """ E1 VOZ """

voice-port 0/0/0:0

cptone MX
translation-profile incoming Incoming_Calls_5700
translation-profile outgoing outgoing_calls

voice translation-profile Incoming_Calls_5700
translate called 10

voice translation-profile outgoing_calls
translate calling 2

voice translation-rule 2
rule 1 /^9/ //

voice translation-rule 10
rule 1 /^4060/ /7000/
rule 2 /4050/ /6000/

dial-peer voice 200 pots
description Incoming
translation-profile incoming Incoming_Calls_5700
incoming called-number .
direct-inward-dial
!
dial-peer voice 201 pots
description Outgoing
translation-profile outgoing outgoing_calls
destination-pattern 9T
port 0/0/0:0

(Y)

remi-reszka · ‎11-15-2010

Hi nosferatus,

Thanks a lot for the config. Without having Telmex E1 parameters I came up with quite similar config to yours. I did the configuration and still no caller ID (ANI). Did you have similar problem while setting up the trunks? Is it possible Telmex is blocking ANI on our E1 service? Thanks for any suggestions.

Chester Rieman · ‎11-22-2010

ANI should be sent as part of the group I signal:

http://www.cisco.com/en/US/partner/tech/tk652/tk653/technologies_tech_note09186a00800943c2.shtml#tnter

More info:

http://www.cisco.com/en/US/partner/tech/tk652/tk653/technologies_configuration_example09186a00800ad389.shtml#cfg_int_s