Trunk group

[Thiago Gandara]

Hi voice team,

i´d like to know how to configure a trunk-group in the router with 2 links E1 - R2-Digital,

Attached is the running-config.

[Chris Deren]

Did you try searching for it? Quick Google search reveals this good doc:

http://www.markholloway.com/blog/?p=452

HTH,

Chris

[Thiago Gandara]

Hi, the router doesn't have any serial interface.

Thanks.

[Chris Deren]

serial interface is only for PRI circuits, if these are pots lines or E1/T1 CAS circuits then apply trunk group to voice-port.

HTH,

Chris

[Thiago Gandara]

When i applied the trunk-group on voice-port, thats happen:

RT-TELEFONIA(config)#voice-port 0/0/0:0

RT-TELEFONIA(config-voiceport)#trunk-group E1

Error: Failed to add non-analog port to trunk group

  Configure in cas-custom mode or serial interface

  mode for T1/E1 digital ports and in BRI interface

  mode for BRI voice ports

[Harmit Singh]

Hi Thiago,

Like the error states, for E1R2, trunk groups can ideally be configured in the cas custom mode:

http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800942f2.shtml

www.cisco.com/en/US/docs/ios/12_2t/12_2t11/feature/guide/ftgwrepg.html#wp1034848

HTH.

Regards,

Harmit.

[Thiago Gandara]

The router models is: 2811 and the cas-custom is already configured:

controller E1 0/0/0

framing NO-CRC4

ds0-group 0 timeslots 1-15,17-30 type r2-digital r2-compelled ani

cas-custom 0

  country brazil

  metering

  double-answer

  category 2

  answer-signal group-b 1

description LINK BRASILTELECOM 1

!

controller E1 0/0/1

framing NO-CRC4

ds0-group 0 timeslots 1-15,17-30 type r2-digital r2-compelled ani

cas-custom 0

  country brazil

  metering

  double-answer

  category 2

  answer-signal group-b 1

description LINK BRASILTELECOM 2

[Harmit Singh]

Thiago,

I guess you didn't go through the link I gave :-)

E1R2Router(config)#controller E1 0
E1R2Router(config-controller)#ds0-group 1 timeslots 2 type r2-digital r2-compelled ani
E1R2Router(config-controller)#cas-custom 1
E1R2Router(config-ctrl-cas)#?
CAS custom commands:
  alert-wait-time      Time to wait for alert indication for incoming R2 calls
  ani-digits           Expected number of ANI digits
  ani-timeout          Timeout for ANI digits
  answer-guard-time    Wait Between Group-B Answer Signal And Line Answer
  answer-signal        Answer signal to be used
  caller-digits        Digits to be collected before requesting CallerID
  category             Category signal
  country              Country Name
  debounce-time        Debounce Timer
  default              Set a command to its defaults
  disconnect-tone      Provide tone to the calling party after sending group B
  dnis-complete        Send I-15 after DNIS digits for dial-out
  dnis-digits          Expected number of DNIS digits
  exit                 Exit from cas custom mode
  groupa-callerid-end  Send Group-A Caller ID End
  invert-abcd          invert the ABCD bits before tx and after rx
  kA                   kA Signal
  kd                   KD Signal
  metering             R2 network is sending metering signal
  nc-congestion        Non Compelled Congestion signal
  no                   Negate a command or set its defaults
  proceed-to-send      Suppress proceed-to-send signal for pulsed line signaling
  release-ack          Send Release Acknowledgment to Clear Forward
  release-guard-time   Release Guard Timer
  request-category     DNIS Digits to be collected before requesting category
  seizure-ack-time     Seizure to Acknowledge timer
  signal-end-to-end    Transfer R2 Category and Answer signals end-to-end 
  timer                configure timer 
  trunk-group          Configure interface to be in a trunk group
  unused-abcd          Unused ABCD bit values

Did you try this?

Regards,

Harmit.

[Thiago Gandara]

Oh sorry, i will try to do this,but after applying the trunk on controller, i have to put the trunk-group in the voice-port to?

Thanks.

[Harmit Singh · Accepted solution]

No worries Thiago, happens to us all :-)

You cant apply it on the voice-port for E1R2 config, else you'll get the same error you got before. The final place you need to apply the trunk group is on the POTS dialpeers. Let me know how it goes.

Regards,

Harmit.

[Marcos Cardoso]

Hi Everyone, 

I am facing this issue too with a 3925 ISR (C3900e-UNIVERSALK9-M), Version 15.5(1)T.

My config:

trunk group LABEL1
hunt-scheme longest-idle

!

controller E1 0/1/0
framing NO-CRC4
ds0-group 1 timeslots 1-15,17-31 type r2-digital r2-compelled ani
cas-custom 1
country brazil
metering
category 2
answer-signal group-b 1
trunk-group LABEL1
!
controller E1 0/1/1
framing NO-CRC4
ds0-group 1 timeslots 1-15,17-31 type r2-digital r2-compelled ani
cas-custom 1
country brazil use-defaults
metering
category 2
answer-signal group-b 1
trunk-group LABEL1

!
controller E1 0/1/2
framing NO-CRC4
ds0-group 1 timeslots 1-15,17-31 type r2-digital r2-compelled ani
cas-custom 1
country brazil use-defaults
metering
category 2
answer-signal group-b 1
trunk-group LABEL1

!

dial-peer voice 140 pots
description - Mobile Local calls 
destination-pattern 09........$
progress_ind alert enable 8
trunkgroup LABEL1
!

As soon as I set up this config, all my call did not reach the gateway anymore. Does anybody has any idea, I couldn't find anything on google yet!

Any help it's going to be more then welcome!

Regards

MC

[Thiago Gandara]

I have another doubt, the " cas-custom 1 " works in brazil to?

[Harmit Singh]

Thiago,

That was just an example. The syntax for this command is:

R7(config-controller)#cas-custom ?

  <0-30>  Channel number

The channel number depends on your ds0-group number. I dont see why cas-custom 1 wont work in Brazil.

Regards,

Harmit.

[Thiago Gandara]

But the router is already configured with "cas-custom 0", and "ds0-group 0" and dont appears the trunk-group option:

RT-TELEFONIA(config)#controller e1 0/0/0

RT-TELEFONIA(config-controller)#cas

RT-TELEFONIA(config-controller)#?

Controller configuration commands:

  alarm-trigger     ds0 alarm aggregation

  cas-custom        cas group customization configuration

  channel-group     Specify the timeslots to channel-group mapping for an

                    interface

  clock             Specify the clock source for a DS1 link

  default           Set a command to its defaults

  description       Controller specific description

  detect            Enable detection of loopback request

  ds0               ds0 commands

  ds0-group         Configure group of timeslots to a particular signaling type

  exit              Exit from controller configuration mode

  framing           Specify the type of Framing on a E1 link

  guard-timer       Guard timer (0-20) for xcsp calls - timer duration and

                    accept/reject on expiry

  help              Description of the interactive help system

  line-termination  Specify the line termination for E1

  linecode          Specify the line encoding method for a E1 link

  loopback          Put the entire E1 line into loopback

  mode              Configure the controller mode

  no                Negate a command or set its defaults

  pri-group         Configure the specified timeslots for PRI

  shutdown          Shut down a E1 link (send Blue Alarm)

  snmp              Modify SNMP controller parameters

  tdm-group         Configure DS0 group for TDM

[Harmit Singh · Accepted solution]

Thiago,

You need to go into the sub config mode for cas-custom 0, like this:

RT-TELEFONIA(config)#controller e1 0/0/0

RT-TELEFONIA(config-controller)#cas-custom 0

RT-TELEFONIA(config-ctrl-cas)#trunk-group ?

  WORD  Trunk group label

Regards,
Harmit.