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Telephony Signaling

Configuring and Troubleshooting T1 CAS Signaling

Cisco - Configuring and Troubleshooting T1 CAS Signaling

Document ID: 24642

Updated: Feb 02, 2006

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Introduction

This document explains the configurations necessary to implement T1 channel associated signaling (CAS).

Prerequisites

Requirements

Ensure that you meet these requirements before you attempt this configuration:

This document is based on Understanding How Digital T1 CAS (Robbed Bit Signaling) Works in IOS Gateways. Read this document to understand the various types of CAS signaling methods. This document also serves as a guide for configuring the different types of CAS signaling.

Before you implement E1 R2 signaling in a Cisco AS5300 router, check to ensure that your version of Cisco IOS® Software is compatible with the Cisco VCWare in the E1 module. If the versions are incompatible, the digital signal processor (DSP) modules in the voice card will not load and voice signal processing will not occur. See the Cisco VCWare Compatibility Matrix for the Cisco AS5300 to ensure that your versions are compatible.

Typically, if the version of Cisco VCWare is not compatible with the Cisco IOS Software, you can see this by entering the show vfc slot_number interface command as shown here:

5300#show vfc 1 interface
Rx: in ptr 18, outptr 0
Tx: in ptr 14  outptr  14
0 in hw queue, 0 queue head , 0 queue tail
Hardware is VFC out-of-band channel
Interface : state RESET DSP instance (0x61048284)
dsp_number 0, Channel ID 0
TX outstanding 0, max TX outstanding 0
Received 18 packets, 1087 bytes, 0 giant packets
0 drops, 0 no buffers, 0 input errors
121 bytes output, 14 frames output
0 bounce errors 0

DSP module 1 is not installed
DSP module 2 is not installed
DSP module 3 is not installed
DSP module 4 is not installed
DSP module 5 is not installed

In the output above, the "DSP module number is not installed" statements show that the versions are incompatible for that module number. An example of the DSP modules having the correct Cisco VCWare version loaded is shown here:

5300#show vfc 1 interface
Rx: in ptr 24, outptr 0
TX: in ptr 15  outptr  15
0 in hw queue, 0 queue head , 0 queue tail
Hardware is VFC out-of-band channel
Interface : state RESET DSP instance (0x618C6088)
dsp_number 0, Channel ID 0
TX outstanding 0, max TX outstanding 0
Received 283288 packets, 15864278 bytes, 0 giant packets
0 drops, 0 no buffers, 0 input errors
1416459 bytes output,  141647 frames output
0 bounce errors 0

Slot 1, DSPM 1 (C542), DSP 1, Channel 1
State RESET, DSP instance (0x61914BDC)
TX outstanding 0, max TX outstanding 8
Received 0 packets, 0 bytes, 0 giant packets
0 drops, 0 no buffers, 0 input errors
0 bytes output,  0 frames output
0 bounce errors 0

Slot 1, DSPM 1 (C542), DSP 2, Channel 1
State RESET, DSP instance (0x6191510C)
TX outstanding 0, max TX outstanding 8
Received 0 packets, 0 bytes, 0 giant packets
0 drops, 0 no buffers, 0 input errors
0 bytes output,  0 frames output
0 bounce errors 0

To check the installed Cisco VCWare version, enter the show vfc slot_number version vcware command as shown here:

5300#show vfc 1 version vcware
Voice Feature Card in Slot 1:
VCware Version : 4.10
ROM Monitor Version : 1.2
DSPware Version :
Technology :  C542

Note: Make sure the Cisco VCWare technology version (c549 or c542) matches the installed Voice Feature Card DSP technology (DSPM-542: single-density voice support, or DSPM-549: high-density voice support).

Components Used

The information in this document is based on these software and hardware versions:

  • Cisco AS5300 Router (all versions)

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Configure

In this section, you are presented with the information to configure the features described in this document.

Note: Use the Command Lookup Tool (registered customers only) to find more information on the commands used in this document.

Configurations

To run CAS signaling on Cisco 2600/3600 series routers, a High Density Voice Network Module (NM-HDV) is required.

The command ds0-group (or cas-group, depending on the Cisco IOS version) needs to be defined on the T1 controllers (Cisco AS5xxx and 2600/3600 routers).

Use this procedure to configure CAS:

  1. Set up the T1 controller connected to the private automatic branch exchange (PBX) or switch. Ensure that the framing and line coding of the T1 are properly set.

    • T1 framing: ESF or SF

    • T1 line coding: B8ZS or AMI

    • T1 clock source: internal or line

    Note: Keep in mind that different PBXs have different requirements on the clock source.

  2. Use this command sequence to define your line signaling on AS5xxx platforms:

    5300(config)#controller T1 0
    
    5300(config-controller)#
    ds0-group 1 timeslots 1-24 type ?
    
    e&m-fgb              E & M Type II FGB
    e&m-fgd              E & M Type II FGD
    e&m-immediate-start  E & M Immediate Start
    fgd-eana             FGD Exchange Access North American
    fgd-os               FGD Operator Services
    fxs-ground-start     FXS Ground Start
    fxs-loop-start       FXS Loop Start
    none                 Null Signaling for External Call Control
    r1-itu               R1 ITU
    sas-ground-start     SAS Ground Start
    sas-loop-start       SAS Loop Start
    <cr>

    Note: If you want to collect Dialed Number Identification Service (DNIS) information on a T1 controller, you must manually configure it on the access server. To collect dual tone multifrequency (DTMF) DNIS for E&M-fgb under a controller T1 configuration, use the ds0-group 0 timeslots 1-24 type e&m-fgb dtmf dnis command. To collect multifrequency (MF) DNIS for E&M-fgb, use the ds0-group 0 timeslots 1-24 type e&m-fgb mf dnis command.

  3. Use this command sequence to define your line signaling on Cisco 2600/3600 platforms:

    3600(config)#controller T1 0
    3600(config-controller)# 
    ds0-group 1 timeslots 1-24 type ? 
    
    e&m-delay-dial       E & M Delay Dial
    e&m-fgd 			 E & M Type II FGD
    e&m-immediate-start  E & M Immediate Start
    e&m-wink-start       E & M Wink Start
    ext-sig              External Signaling
    fgd-eana             FGD-EANA BOC side
    fxo-ground-start     FXO Ground Start
    fxo-loop-start       FXO Loop Start
    fxs-ground-start     FXS Ground Start
    fxs-loop-start       FXS Loop Start
    none                 Null Signaling for External Call Control
    <cr>

    With Cisco IOS Software release 11.3, the command sequence is as follows.

    peggy(config)#controller T1 0
    
    peggy(config-controller)#cas-group 1 timeslot 1-15 type ?
    
    ...

    Note: If you upgrade from Cisco IOS Software release 11.3 to release 12.0, the new command will replace the old one automatically.

This document uses these configurations:

Cisco 5300 Configured for E&M-FGD DTMF DNIS
hostname 5300-fg-d

!

controller T1 0

 clock source line primary

 ds0-group 1 timeslots 1-24 type e&m-fgd dtmf dnis



!--- With this configuration we will use DTMF and
!--- request the DNIS information.


!

voice-port 0:1

!

dial-peer voice 123 pots

 destination-pattern 123

 direct-inward-dial 
 
!--- This will only work if the DNIS information is recieved.


 port 0:1

 prefix 123


!

dial-peer voice 567 voip

 destination-pattern 567

 session target ipv4:2.0.0.2

!

Cisco 5300 Configured for E&M-FGB
hostname 5300-fg-b
!

controller T1 0

 clock source line primary

 ds0-group 1 timeslots 1-24 type e&m-fgb

!

voice-port 0:1

!
dial-peer voice 123 pots

 destination-pattern 123

 port 0:1

 prefix 123

!

dial-peer voice 567 voip

 destination-pattern 567

 session target ipv4:2.0.0.2

!

Cisco 3600 Configured for E&M FGB (wink-start)
hostname 3600-fg-b
!

controller T1 1/0

 clock source line primary

 ds0-group 1 timeslots 1-24 type e&m-wink-start

!

voice-port 1/0:1

!
dial-peer voice 123 pots

 destination-pattern 123

 port 1/0:1

 prefix 123

!

dial-peer voice 567 voip

 destination-pattern 567

 session target ipv4:2.0.0.2

Verify

There is currently no verification procedure available for this configuration.

Troubleshoot

This section provides information you can use to troubleshoot your configuration.

Troubleshooting Procedure

Follow these instructions to troubleshoot your configuration. Refer to E1 R2 Customization with the cas-custom Command for additional information on troubleshooting.

  1. Verify that the T1 controller 0 is up. If it is down, check the framing, line coding, clock source, alarms, replace the cable, reseat the card, and so forth and so on.

  2. If you are using a Cisco AS5300, check that the DSPs are correctly installed with the show vfc slot number interface command.

  3. For FGD trunks configure direct inward dial (DID) on the plain old telephone service (POTS) peer, so that the received digits are used to choose an outgoing peer.

    Note: On the Cisco AS5300 you will need to have the "dnis" option configured to request DNIS.

  4. Turn on some of the debug commands shown in the following section and study the outputs

  5. Check for communication between the router and PBX or switch.

    • Is the line seized?

    • Does the router receive/send digits?

    • Find out which side is clearing the call.

    • If possible, use the latest Cisco IOS Software releases available on Cisco.com.

Determining your Signaling on a Cisco AS5xxx Router

It can be difficult determining what type of signaling you have by looking at the debugs of a router. However, it is possible to make a good guess as to what the signaling should be. The following debug is fairly reliable (especially when all the channels are idle) in determining the type of signaling. It is recommended that you first verify your signaling through these debugs since they can catch the most common and not-so-obvious provisioning mistakes. As usual, exercise caution when turning debugs on in the router. It is recommended that you do not enable debugging unless you are familiar with its functionalities. Be aware that not all debugs are available for every network access server (NAS) platform.

Troubleshooting Commands

The Output Interpreter Tool (registered customers only) (OIT) supports certain show commands. Use the OIT to view an analysis of show command output.

Note: Refer to Important Information on Debug Commands before you use debug commands.

  • debug serial interface —Displays information on a serial connection failure.

  • show controller t1 —Displays the controller status specific to the controller hardware.

  • debug cas —For line signaling on Cisco AS5xxx platforms.

  • debug vpm signal —For line signaling on Cisco 26xx/36xx platforms.

  • debug vtsp all —Enables the output of all messages (digits) exchanged between the PBX and the router.

bosshog#debug serial interface

!--- This enables the output below.

Serial network interface debugging is on

bosshog#show controller t1
T1 0 is up.
 No alarms detected.
 Version info of slot 0:  HW: 2, Firmware: 16, PLD Rev: 0
 Manufacture Cookie Info:
 EEPROM Type 0x0001, EEPROM Version 0x01, Board ID 0x42,
 Board Hardware Version 1.0, Item Number 73-2217-4,
 Board Revision A0, Serial Number 07389920,
 PLD/ISP Version 0.0, Manufacture Date 3-Jan-1998.
 Framing is ESF, Line Code is B8ZS, Clock Source is Line Primary.
  Data in current interval (6 seconds elapsed):
     0 Line Code Violations, 0 Path Code Violations
     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
 Robbed bit signals state:
        timeslots     rxA rxB rxC rxD         txA txB txC txD

        1                0   0   0   0           0   0   0   0
        2                0   0   0   0           0   0   0   0
        <snip>
        23              0   0   0   0           0   0   0   0
        24              0   0   0   0           0   0   0   0


!--- Looking at the above signals, we are receiving all 0s from the switch.
!--- This looks like some form of E&M Signaling.
!--- We can determine the following when the line is idle.


    timeslots     rxA rxB rxC rxD         txA txB txC txD
    1                0   0   0   0           0   0   0   0 
    
!--- Looks like an E&M variant.

    2                0   1   0   1           0   1   0   1 
    
!--- Looks like fxs-loop-start.

    3                1   1   1   1           0   1   0   1 
    
!--- Looks like fxs-ground-start.

The output below is for E&M FGB on a Cisco AS5300.

5300-fg-b#show debug
CAS:

 Channel Associated Signaling debugging is on

5300-fg-b#

!--- Incoming call to router.

*May 28 12:40:35.376: from Trunk(0): (1/0): Rx LOOP_CLOSURE (ABCD=1111)

!--- Switch is off hook.
!--- Send wink back to the switch. Note we transition from a on/off/on hook state.

*May 28 12:40:35.600: from Trunk(0): (1/0): Tx LOOP_CLOSURE (ABCD=1111)

!--- Sending Wink back. Off hook.

*May 28 12:40:35.800: from Trunk(0): (1/0): Tx LOOP_OPEN (ABCD=0000)

!--- End of wink ~200 ms duration.  On hook.

5300-fg-b#
5300-fg-b#

!--- The call is now in an alerting state waiting for a connect.
!--- Router goes off hook. Call is connected.

*May 28 12:40:37.352: from Trunk(0): (1/0): Tx LOOP_CLOSURE (ABCD=1111)

!--- Router has gone off hook. Send a connect.

5300-fg-b#
5300-fg-b#
5300-fg-b#

!--- At this point, the call is torn down in the direction of the PBX.

*May 28 12:40:42.608: from Trunk(0): (1/0): Tx LOOP_OPEN (ABCD=0000)

!--- Router disconnects call on hook.

*May 28 12:40:42.940: from Trunk(0): (1/0): Rx LOOP_OPEN (ABCD=0000)

!--- Switch terminates upon receipt on hook.

This sample is for outgoing E&M FGB on a Cisco 3600.

3600-fg-b#show debug

Voice Port Module signaling debugging is on
3600-fg-b#

!--- Outgoing call from router.

*Mar  3 04:01:35.167: htsp_process_event: [2/1:1(1), EM_ONHOOK, E_HTSP_SETUP_REQ
]em_onhook_setup 

!--- On hook state.

*Mar  3 04:01:35.167: em_offhook (0)[recEive and transMit2/1:1(1)] set signal st
ate = 0x8
*Mar  3 04:01:35.167: htsp_process_event: [2/1:1(1), EM_BRANCH, EM_EVENT_WINK]
*Mar  3 04:01:35.167: em_start_timer: 550 ms
*Mar  3 04:01:35.167: htsp_timer - 550 msec
*Mar  3 04:01:35.415: htsp_process_event: [2/1:1(1), EM_WAIT_WINKUP, E_DSP_SIG_1
100]em_wink_offhook 

!--- Router sends off hook.

*Mar  3 04:01:35.415: em_stop_timers
*Mar  3 04:01:35.415: htsp_timer_stop
*Mar  3 04:01:35.415: em_start_timer: 1200 ms
*Mar  3 04:01:35.415: htsp_timer - 1200 msec
*Mar  3 04:01:35.619: htsp_process_event: [2/1:1(1), EM_WAIT_WINKDOWN, E_DSP_SIG
_0000]em_wink_onhook 

!--- Router sends on hook.

*Mar  3 04:01:35.623: em_stop_timers
*Mar  3 04:01:35.623: htsp_timer_stop htsp_wink_ind
*Mar  3 04:01:35.623: htsp_timer - 70 msec
*Mar  3 04:01:35.695: htsp_process_event: [2/1:1(1), EM_WAIT_DIALOUT_DELAY, E_HT
SP_EVENT_TIMER]em_imm_send_digits  em_send_digits  htsp_dial

!--- At this point we send the digits.

*Mar  3 04:01:36.507: htsp_process_event: [2/1:1(1), EM_WAIT_FOR_ANSWER, E_DSP_D
IALING_DONE]em_offhook_digit_done htsp_progress
*Mar  3 04:01:36.507: ===== state 0x630852C0

*Mar  3 04:01:37.035: htsp_process_event: [2/1:1(1), EM_WAIT_FOR_ANSWER, E_DSP_S
IG_1100]em_wait_answer_offhook

!--- Router is waiting for far end to connect.

*Mar  3 04:01:37.035: em_stop_timers
*Mar  3 04:01:37.035: htsp_timer_stop
*Mar  3 04:01:37.035: htsp_timer_stop2

This sample is for FXS loop-start on a Cisco 2600.

FXS Loop-start Signal Map
*Mar 1 01:55:51.091: Foreign Exchange Station 1/1:1(22) rx_signal_map:
0 F F F
5 F 5 F
F F F F
F F F F
*Mar 1 01:55:51.095: Foreign Exchange Station 1/1:1(22) tx_signal_map:
4 4 4 4
4 4 4 4
C C C C
C C C C


!--- FXS Loop-start incoming call.

*Mar 1 02:02:13.743: htsp_dsp_message: SEND/RESP_SIG_STATUS: state=0xC timestamp=26688 systime=733374
*Mar 1 02:02:13.743: [1/1:1(1), FXSLS_ONHOOK, E_DSP_SIG_1100] fxsls_onhook_offhook htsp_setup_ind
*Mar 1 02:02:13.751: [1/1:1(1), FXSLS_WAIT_SETUP_ACK, E_HTSP_SETUP_ACK]
*Mar 1 02:02:14.871: [1/1:1(1), FXSLS_OFFHOOK, E_HTSP_PROCEEDING] htsp_alert_notify
*Mar 1 02:02:15.163: [1/1:1(1), FXSLS_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 02:02:15.607: [1/1:1(1), FXSLS_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 02:02:15.607: [1/1:1(1), FXSLS_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH]


!--- Call is ringing now.
!--- Is answered below.

vdtl-2600-6d#htsp_connect: no_offhook 0
*Mar 1 02:02:26.239: [1/1:1(1), FXSLS_OFFHOOK, E_HTSP_CONNECT]
fxsls_offhook_connect[Foreign Exchange Station 1/1:1(1)] set signal state = 0x6


!--- Call is disconnected from T1 side below.

vdtl-2600-6d#  

!--- Near end disconnect (from T1 side).

vdtl-2600-6d#
*Mar 1 02:02:37.299: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x4 timestamp=50246 systime=735730
*Mar 1 02:02:37.299: [1/1:1(1), FXSLS_CONNECT, E_DSP_SIG_0100] fxsls_offhook_onhook
*Mar 1 02:02:37.299: htsp_timer - 600 msec
*Mar 1 02:02:37.899: [1/1:1(1), FXSLS_CONNECT,
E_HTSP_EVENT_TIMER] fxsls_connect_wait_release_req
*Mar 1 02:02:37.899: htsp_timer_stop htsp_release_req: cause 16, no_onhook 0
*Mar 1 02:02:37.919: [1/1:1(1), FXSLS_WAIT_RELEASE_REQ,
E_HTSP_RELEASE_REQ] fxsls_waitrls_req_rlshtsp_report_onhook_sig
*Mar 1 02:02:37.923: vnm_dsprm_close_cleanup


!--- FXS loop-start outgoing call.

*Mar 1 03:42:05.067: [1/1:1(2), FXSLS_ONHOOK, E_HTSP_SETUP_REQ]
fxsls_onhook_setup[Foreign Exchange Station 1/1:1(2)] set signal state = 0x0htsp_alert
*Mar 1 03:42:05.327: [1/1:1(2), FXSLS_WAIT_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH] fxsls_waitoff_voice
*Mar 1 03:42:05.763: [1/1:1(2), FXSLS_WAIT_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH] fxsls_waitoff_voice
*Mar 1 03:42:05.763: [1/1:1(2), FXSLS_WAIT_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH] fxsls_waitoff_voice

!--- Call is ringing now.
!--- Call is answered below.
*Mar 1 03:42:30.039: htsp_dsp_message:
SEND/RESP_SIG_STATUS: state=0x4 timestamp=14102 systime=1335004
*Mar 1 03:42:30.039: [1/1:1(1), FXSLS_ONHOOK, E_DSP_SIG_0100]
*Mar 1 03:42:30.087: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0xC timestamp=14144 systime=1335008
*Mar 1 03:42:30.087: [1/1:1(2), FXSLS_WAIT_OFFHOOK, E_DSP_SIG_1100]
fxsls_waitoff_offhook[Foreign Exchange Station 1/1:1(2)]
set signal state = 0x4[Foreign Exchange Station 1/1:1(2)]
set signal state = 0x6 htsp_dial


!--- Call is disconnected via VoIP side below.

vdtl-2600-6d#htsp_release_req: cause 16, no_onhook 0
*Mar 1 03:43:27.855: [1/1:1(2), FXSLS_CONNECT, E_HTSP_RELEASE_REQ] fxsls_connect_disc
*Mar 1 03:43:27.855: htsp_timer_stop [Foreign Exchange Station 1/1:1(2)]
set signal state = 0xC[Foreign Exchange Station 1/1:1(2)] set signal state = 0x4
*Mar 1 03:43:27.859: htsp_timer - 950 msec
*Mar 1 03:43:28.811: [1/1:1(2), FXSLS_CPC, E_HTSP_EVENT_TIMER] fxsls_cpc_timer
*Mar 1 03:43:28.811: htsp_timer - 30000 msec
*Mar 1 03:43:28.815: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0xC timestamp=8470 systime=1340881
*Mar 1 03:43:28.815: [1/1:1(2), FXSLS_WAIT_ONHOOK, E_DSP_SIG_1100]

This sample is for FXO loop-start on a Cisco 2600.

FXO Loop-start Channel Map
*Mar 1 03:48:30.055: Foreign Exchange Office 1/1:1(24) rx_signal_map:
F F F F
5 F F F
F F F F
F F F F[Foreign Exchange Office 1/1:1(24)] set signal state = 0x4
*Mar 1 03:48:30.055: Foreign Exchange Office 1/1:1(24) tx_signal_map:
0 0 4 4
4 4 4 4
C C C C
C C C C


!--- FXO loop-start incoming call.

*Mar 1 03:52:56.271: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x0 timestamp=50660 systime=1397627
*Mar 1 03:52:56.271: [1/1:1(1), FXOLS_ONHOOK, E_DSP_SIG_0000] fxols_onhook_ringing
*Mar 1 03:52:56.271: htsp_timer - 10000 msec
*Mar 1 03:52:58.267: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x4 timestamp=52658 systime=1397826
*Mar 1 03:52:58.271: [1/1:1(1), FXOLS_RINGING, E_DSP_SIG_0100]
*Mar 1 03:52:58.271: fxols_ringing_not
*Mar 1 03:52:58.271: htsp_timer_stop htsp_setup_ind
*Mar 1 03:52:58.275: [1/1:1(1), FXOLS_WAIT_SETUP_ACK, E_HTSP_SETUP_ACK]
*Mar 1 03:52:58.275: fxols_wait_setup_ack:
[Foreign Exchange Office 1/1:1(1)] set signal state = 0xC


!--- Call is ringing and is answered (dial tone).
!--- Entering destination for the call now.

*Mar 1 03:53:09.019: [1/1:1(1), FXOLS_PROCEEDING, E_HTSP_PROCEEDING] fxols_offhook_proc
*Mar 1 03:53:09.019: htsp_timer - 120000 msechtsp_alert_notify
*Mar 1 03:53:09.311: [1/1:1(1), FXOLS_PROCEEDING, E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 03:53:09.759: [1/1:1(1), FXOLS_PROCEEDING, E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 03:53:09.759: [1/1:1(1), FXOLS_PROCEEDING,
E_HTSP_VOICE_CUT_THROUGH] htsp_connect: no_offhook 0
*Mar 1 03:53:12.711: [1/1:1(1), FXOLS_PROCEEDING,
E_HTSP_CONNECT] fxols_offhook_connect
*Mar 1 03:53:12.711: htsp_timer_stop


!--- Call is disconnected via VoIP side.

vdtl-2600-6d#htsp_release_req: cause 16, no_onhook 0
*Mar 1 03:53:44.079: [1/1:1(1), FXOLS_CONNECT, E_HTSP_RELEASE_REQ]
fxols_offhook_release
*Mar 1 03:53:44.079: htsp_timer_stop [Foreign Exchange Office 1/1:1(1)]
set signal state = 0x4
*Mar 1 03:53:44.079: htsp_timer - 2000 msec
*Mar 1 03:53:44.079: vnm_dsprm_close_cleanup
*Mar 1 03:53:46.079: [1/1:1(1), FXOLS_GUARD_OUT,
E_HTSP_EVENT_TIMER] fxols_guard_out_timeout


!--- FXO loop-start outgoing call.

*Mar 1 03:50:47.099: [1/1:1(2), FXOLS_ONHOOK, E_HTSP_SETUP_REQ]
fxols_onhook_setup[Foreign Exchange Office 1/1:1(2)] set signal state = 0xC
*Mar 1 03:50:47.099: htsp_timer - 1300 msec
*Mar 1 03:50:48.399: [1/1:1(2), FXOLS_WAIT_DIAL_TONE,
E_HTSP_EVENT_TIMER] fxols_wait_dial_timer htsp_dial
*Mar 1 03:50:50.407: [1/1:1(2), FXOLS_WAIT_DIAL_DONE,
E_DSP_DIALING_DONE] fxols_wait_dial_done htsp_alert
*Mar 1 03:50:50.659: [1/1:1(2), FXOLS_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 03:50:50.695: [1/1:1(2), FXOLS_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 03:50:50.707: [1/1:1(2), FXOLS_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH]


!--- Call is answered now.  Debugs shown because of lack of answer supervision.
!--- The next thing that happens is a VoIP side disconnect.

vdtl-2600-6d#htsp_release_req: cause 16, no_onhook 0
*Mar 1 03:51:06.483: [1/1:1(2), FXOLS_OFFHOOK,
E_HTSP_RELEASE_REQ] fxols_offhook_release
*Mar 1 03:51:06.483: htsp_timer_stop
[Foreign Exchange Office 1/1:1(2)] set signal state = 0x4
*Mar 1 03:51:06.483: htsp_timer - 2000 msec
*Mar 1 03:51:06.487: vnm_dsprm_close_cleanup
*Mar 1 03:51:08.483: [1/1:1(2), FXOLS_GUARD_OUT,
E_HTSP_EVENT_TIMER] fxols_guard_out_timeout

This sample is for FXS ground-start on a Cisco 2600.


!--- FXS ground-start signal map.

*Mar 1 04:04:13.334: Foreign Exchange Station 1/1:1(16) rx_signal_map:
0 F F F
5 F 5 F
F F F F
F F F F
*Mar 1 04:04:13.338: Foreign Exchange Station 1/1:1(16) tx_signal_map:
0 0 0 0
4 4 4 4
8 8 8 8
C C C C


!--- FXS ground-start incoming call.

*Mar 1 04:05:22.650: %SYS-5-CONFIG_I: Configured from console by console
*Mar 1 04:05:26.982: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x0 timestamp=15488 systime=1472698
*Mar 1 04:05:26.982: [1/1:1(1), FXSGS_ONHOOK, E_DSP_SIG_0000]
fxsgs_onhook_ringgnd[Foreign Exchange Station 1/1:1(1)] set signal state = 0x4
*Mar 1 04:05:26.982: htsp_timer - 900 msec
*Mar 1 04:05:27.142: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0xC timestamp=15648 systime=1472714
*Mar 1 04:05:27.142: [1/1:1(1), FXSGS_WAIT_LOOPCLOSE,
E_DSP_SIG_1100] fxsgs_wait_loopclose
*Mar 1 04:05:27.142: htsp_timer_stop htsp_setup_ind
*Mar 1 04:05:27.150: [1/1:1(1), FXSGS_WAIT_SETUP_ACK,
E_HTSP_SETUP_ACK] fxsgs_wait_setup_rcv_ack[Foreign Exchange Station 1/1:1(1)]
set signal state = 0x4
*Mar 1 04:05:28.282: [1/1:1(1), FXSGS_OFFHOOK,
E_HTSP_PROCEEDING] htsp_alert_notify
*Mar 1 04:05:28.598: [1/1:1(1), FXSGS_OFFHOOK,
E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 04:05:28.626: [1/1:1(1), FXSGS_OFFHOOK,
E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 04:05:28.638: [1/1:1(1), FXSGS_OFFHOOK,
E_HTSP_VOICE_CUT_THROUGH]


!--- Call is ringing now.
!--- Call is answered below.

vdtl-2600-6d#htsp_connect: no_offhook 0
*Mar 1 04:05:35.262: [1/1:1(1), FXSGS_OFFHOOK, E_HTSP_CONNECT]
fxsgs_offhook_connect[Foreign Exchange Station 1/1:1(1)] set signal state = 0x6


!--- Call is disconnected via T1 side.

*Mar 1 04:05:42.822: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x4 timestamp=31328 systime=1474282
*Mar 1 04:05:42.822: [1/1:1(1), FXSGS_CONNECT, E_DSP_SIG_0100]
fxsgs_connect_onhookhtsp_release_req: cause 16, no_onhook 0
*Mar 1 04:05:42.850: [1/1:1(1), FXSGS_WAIT_RELEASE_REQ, E_HTSP_RELEASE_REQ]
fxsgs_wait_release_req_release[Foreign Exchange Station 1/1:1(1)] set signal state = 0xC
*Mar 1 04:05:42.850: vnm_dsprm_close_cleanup
*Mar 1 04:05:42.854: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x4 timestamp=8983 systime=1474285
*Mar 1 04:05:42.854: [1/1:1(1), FXSGS_ONHOOK, E_DSP_SIG_0100]
vdtl-2600-6d#


!--- FXS ground-start outgoing call.

*Mar 1 04:26:50.578: [1/1:1(1), FXSGS_ONHOOK, E_HTSP_SETUP_REQ]
fxsgs_onhook_setup[Foreign Exchange Station 1/1:1(1)] set signal state = 0x0htsp_alert
*Mar 1 04:26:50.834: [1/1:1(1), FXSGS_WAIT_OFFHOOK,
E_HTSP_VOICE_CUT_THROUGH] fxsgs_waitoff_voice
*Mar 1 04:26:51.282: [1/1:1(1), FXSGS_WAIT_OFFHOOK,
E_HTSP_VOICE_CUT_THROUGH] fxsgs_waitoff_voice
*Mar 1 04:26:51.282: [1/1:1(1), FXSGS_WAIT_OFFHOOK,
E_HTSP_VOICE_CUT_THROUGH] fxsgs_waitoff_voice


!--- Call rings and is then answered.

*Mar 1 04:27:02.234: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0xC timestamp=974 systime=1602223
*Mar 1 04:27:02.234: [1/1:1(1), FXSGS_WAIT_OFFHOOK, E_DSP_SIG_1100]
fxsgs_waitoff_offhook[Foreign Exchange Station 1/1:1(1)] set signal state = 0x4
*Mar 1 04:27:02.238: htsp_timer_stop [Foreign Exchange Station 1/1:1(1)]
 set signal state = 0x6


!--- Call is disconnected via VoIP side below.

vdtl-2600-6d#htsp_release_req: cause 16, no_onhook 0
*Mar 1 04:27:16.146: [1/1:1(1), FXSGS_CONNECT, E_HTSP_RELEASE_REQ]
fxsgs_connect_release[Foreign Exchange Station 1/1:1(1)] set signal state = 0xC
*Mar 1 04:27:16.190: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x0 timestamp=14928 systime=1603619
*Mar 1 04:27:16.194: [1/1:1(1), FXSGS_WAIT_ONHOOK, E_DSP_SIG_0000]

This sample is for FXO ground-start on a Cisco 2600.


!--- FXO ground-start signal map.

*Mar 1 04:31:34.166: Foreign Exchange Office 1/1:1(1) rx_signal_map:
0 F F F
5 F F F
F F F F
F F F F
*Mar 1 04:31:34.166: Foreign Exchange Office 1/1:1(1) tx_signal_map:
0 0 0 0
4 4 4 4
8 8 8 8
C C C C


!--- FXO ground-start incoming call.

*Mar 1 04:35:26.194: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x0 timestamp=46190 systime=1652619
*Mar 1 04:35:26.194: [1/1:1(1), FXOGS_ONHOOK,
E_DSP_SIG_0000] fxogs_onhook_ringing
*Mar 1 04:35:26.194: htsp_timer_stop
*Mar 1 04:35:28.194: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x4 timestamp=48188 systime=1652819
*Mar 1 04:35:28.194: [1/1:1(1), FXOGS_RINGING, E_DSP_SIG_0100]
*Mar 1 04:35:28.194: fxogs_ringing_not:
*Mar 1 04:35:28.194: htsp_timer_stop htsp_setup_ind
*Mar 1 04:35:28.198: [1/1:1(1), FXOGS_WAIT_SETUP_ACK, E_HTSP_SETUP_ACK]
*Mar 1 04:35:28.202: fxogs_wait_setup_ack:
[Foreign Exchange Office 1/1:1(1)] set signal state = 0xC
vdtl-2600-6d#

!--- Call is answered.  Entering digits to route the call further.

vdtl-2600-6d#
*Mar 1 04:35:37.458: [1/1:1(1), FXOGS_OFFHOOK, E_HTSP_PROCEEDING] htsp_alert_notify
*Mar 1 04:35:37.750: [1/1:1(1), FXOGS_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 04:35:37.782: [1/1:1(1), FXOGS_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 04:35:37.798: [1/1:1(1), FXOGS_OFFHOOK, E_HTSP_VOICE_CUT_THROUGH]


!--- VoIP side connected.

vdtl-2600-6d#htsp_connect: no_offhook 0
*Mar 1 04:35:43.350: [1/1:1(1), FXOGS_OFFHOOK, E_HTSP_CONNECT] fxogs_proc_voice


!--- Call disconnected from T1 side.

vdtl-2600-6d#
*Mar 1 04:36:02.890: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0xC timestamp=17354 systime=1656289
*Mar 1 04:36:02.894: [1/1:1(1), FXOGS_OFFHOOK,
E_DSP_SIG_1100] fxogs_offhook_disc
*Mar 1 04:36:02.894: htsp_timer_stop [Foreign Exchange Office 1/1:1(1)]
 set signal state = 0x4
*Mar 1 04:36:02.894: htsp_timer - 2000 msechtsp_release_req:
cause 16, no_onhook 0
*Mar 1 04:36:02.918: [1/1:1(1), FXOGS_GUARD_OUT,
E_HTSP_RELEASE_REQ] fxogs_onhook_release
*Mar 1 04:36:02.922: vnm_dsprm_close_cleanup
*Mar 1 04:36:04.894: [1/1:1(1), FXOGS_GUARD_OUT,
E_HTSP_EVENT_TIMER]


!--- FXO ground-start outgoing call.

*Mar 1 04:33:08.838: [1/1:1(1), FXOGS_ONHOOK, E_HTSP_SETUP_REQ]
fxogs_onhook_setup[Foreign Exchange Office 1/1:1(1)] set signal state = 0x0
*Mar 1 04:33:08.838: htsp_timer - 10000 msec
*Mar 1 04:33:09.214: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0x4 timestamp=40280 systime=1638921
*Mar 1 04:33:09.218: [1/1:1(1), FXOGS_WAIT_TIP_GROUND,
E_DSP_SIG_0100] fxogs_start_dial
*Mar 1 04:33:09.218: htsp_timer_stop
[Foreign Exchange Office 1/1:1(1)] set signal state = 0xC
*Mar 1 04:33:09.218: htsp_timer - 1000 msec
*Mar 1 04:33:10.218: [1/1:1(1), FXOGS_WAIT_DIAL_TONE,
E_HTSP_EVENT_TIMER] fxogs_wait_dial_timer htsp_dial
*Mar 1 04:33:12.226: [1/1:1(1), FXOGS_WAIT_DIAL_DONE, E_DSP_DIALING_DONE]
fxogs_wait_dial_donehtsp_connect: no_offhook 0htsp_alert
*Mar 1 04:33:12.226: [1/1:1(1), FXOGS_OFFHOOK,
E_HTSP_CONNECT] fxogs_proc_voice
*Mar 1 04:33:12.478: [1/1:1(1), FXOGS_OFFHOOK,
E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 04:33:12.514: [1/1:1(1), FXOGS_OFFHOOK,
E_HTSP_VOICE_CUT_THROUGH]
*Mar 1 04:33:12.526: [1/1:1(1), FXOGS_OFFHOOK,
E_HTSP_VOICE_CUT_THROUGH]


!--- Call connects and is answered.
!--- No signaling is reported (no answer supervision for ground-start).
!--- Call disconnected from VoIP leg below.

vdtl-2600-6d#htsp_release_req: cause 16, no_onhook 0
*Mar 1 04:33:22.590: [1/1:1(1), FXOGS_OFFHOOK,
E_HTSP_RELEASE_REQ] fxogs_offhook_release
*Mar 1 04:33:22.590: htsp_timer_stop
*Mar 1 04:33:22.590: htsp_timer_stop2 [Foreign Exchange Office 1/1:1(1)]
set signal state = 0x4
*Mar 1 04:33:22.590: htsp_timer - 2000 msec
*Mar 1 04:33:22.778: htsp_dsp_message: SEND/RESP_SIG_STATUS:
state=0xC timestamp=53840 systime=1640278
*Mar 1 04:33:22.778: [1/1:1(1), FXOGS_WAIT_ONHOOK,
E_DSP_SIG_1100] fxogs_waitonhook_onhook
*Mar 1 04:33:22.778: htsp_timer_stop
*Mar 1 04:33:22.778: htsp_timer - 2000 msec
*Mar 1 04:33:22.782: vnm_dsprm_close_cleanup
*Mar 1 04:33:24.778: [1/1:1(1), FXOGS_GUARD_OUT, E_HTSP_EVENT_TIMER]

Related Information

Updated: Feb 02, 2006
Document ID: 24642