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Cisco IOS Software Releases 12.0 T

R1 Modified Signaling for the Cisco AS5800 Access Server

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R1 Modified Signaling for the Cisco AS5800 Access Server

Feature Summary

Benefits

List of Terms

Restrictions

Platforms

Prerequisites

Supported MIBs and RFCs

Sample Network Topology

Configuring R1 Modified Signaling on the Cisco AS5800

Configuration Examples

Command Reference

cas-group

What to Do Next


R1 Modified Signaling for the Cisco AS5800 Access Server

The following sections are provided:

•Feature Summary

•Benefits

•Platforms

•Supported MIBs and RFCs

•Sample Network Topology

•Configuring R1 Modified Signaling on the Cisco AS5800

•Configuration Examples

•Command Reference

•What to Do Next

Feature Summary

Enabling E1 R1 Modified Signaling allows a Cisco AS5800 universal access server to talk to central office trunks that also use R1 Modified Signaling. R1 Modified Signaling is an international signaling standard that is common to channelized T1/E1 networks; however, Cisco only has made this feature available in Taiwan. You can configure a channelized T1/E1 interface to support different types of R1 Modified Signaling, which is used in older analog telephone networks.

Note   R1-ITU is not the same signaling type as R1-modified, which is for specific countries such as Taiwan.

Benefits

Cisco Systems supports native R1 Modified Signaling on both E1 and T1 interfaces. This version of software supports R1 Modified Signaling customized for Taiwan only. This feature allows enterprises and service providers to fully interoperate with the installed Taiwanese telecommunications standards, providing interoperability in addition to the vast array of Cisco's IOS troubleshooting and diagnostic capability. This will provide customers with a seamless, single-box, solution for their Taiwan signaling requirements.

List of Terms

line signaling—States of call setup on the Trunk A/B/C/D signaling bits.

R1 Trunk—A type of trunk to carry telephony traffic.

register signaling—Multi-frequency tone signaling in the voice channel.

Restrictions

The following restrictions are for the use of R1 Modified Signaling:

•Because different line signaling uses different A/B/C/D bit definitions to represent the line state, you must understand the configuration of the T1/E1 trunk before configuring the cas-group. If the wrong type of provision is configured, the access server might interpret the wrong A/B/C/D bit definitions and behave erratically.

•Cisco access servers with Microcom modems cannot support this feature.

Platforms

This feature is supported on the Cisco AS5800 universal access server.

Note   This feature is already available on the Cisco AS5800 access server.

Prerequisites

The following are hardware and software prerequisites to enable R1 Modified Signaling:

•Cisco AS5800 access server (without a Microcom modem)

•Cisco IOS Release 12.0(2)T or later

•MICA feature module

•Portware Version 2.3.1.0 or later ??????

For information on upgrading your Cisco IOS images, modem portware, or modem code, go to the following locations:

•On Cisco Connection Online (CCO)—
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/as5800/5800_pw/index.htm

Or, follow this path: Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5800: Portware.

•On the Documentation CD-ROM—
Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5800: Portware.

Supported MIBs and RFCs

None.

Sample Network Topology

The following diagram illustrates a service provider using R1 Modified Signaling with E1 and a Cisco AS5800 access server.

Figure 1 Service Provider using E1 R1 Modified Signaling with a Cisco AS5800

Configuring R1 Modified Signaling on the Cisco AS5800

This section describes how to enable R1 Modified Signaling on your Cisco AS5800 access server.

describes how to configure this feature on a T1 interface, and describes how to configure this feature on an E1 interface.

Table 1 Configuring R1 Modified Signaling on a T1 Interface 

Step
Command
Purpose
1

5800> enable

Password: password

5800# 

Enter enable mode.

Enter the password.

You have entered enable mode when the prompt changes to 5800#.

2

5800# configure terminal

Enter configuration commands, one per line. End

with CNTL/Z.

5800(config)#

Enter global configuration mode. You have entered global configuration mode when the prompt changes to 5800(config)#.

3

5800(config)# controller t1 shelf/slot/port

5800(config-controller)#

Enter controller configuration mode to configure your T1 controller port. See the Cisco AS5800 Universal Access Server Software Installation and Configuration Guide for details.

4

5800 (config-controller)# framing {sf|esf}

Entering framing sf configures framing to T1 with sf.

Entering framing esf configures framing to T1 only.

5

5800 (config-controller)# linecode {ami|b8zs}

Entering linecode ami configures line code to AMI1 encoding.

Entering linecode b8zs configures line code to b8zs encoding.

6

5800 (config-controller)# clock source {internal|line [primary|secondary]}

Entering clock source internal configures the clock source to the internal clock.

Entering clock source line primary configures the clock source to the primary recovered clock.

Entering clock source secondary configures the clock source to the secondary recovered clock.

7

5800(config-controller)#  cas-group 1 timeslots 1-24 type {r1-modified{ani-dnis|dnis}|r1-itu {dnis}}

Configure the timeslots that belong to each E1 circuit for r1-modified or for r1-itu Signaling. 2

•The cas-group # ranges from 0 to 23 for CT1.

•The timeslot # ranges from 1 to 24 for CT1.

•For the type, each cas-group can be configured as one of the Robbed Bit Signaling provisions.

•ani-dnis indicates R1 will collect ani and dnis information; dnis indicates R1 will collect only dnis information.

8

5800(config-if)# ^Z

5800#

%SYS-5-CONFIG_I: Configured from console by console

Return to enable mode by simultaneously pressing the Ctrl key and the z key.

This message is normal and does not indicate an error.

1 AMI = Alternate Mark Inversion..

2 For a more detailed destription of the syntax and variables of this command see the section "Command Reference" later in this document.


Table 2 Configuring R1 Modified Signaling on an E1 Interface 

Step
Command
Purpose
1

5800> enable

Password: password

5800# 

Enter enable mode.

Enter the password.

You have entered enable mode when the prompt changes to 5800#.

2

5800# configure terminal

Enter configuration commands, one per line. End

with CNTL/Z.

5800(config)#

Enter global configuration mode. You have entered global configuration mode when the prompt changes to 5800(config)#.

3

5800(config)# controller e1 shelf/slot/port

5800(config-controller)#

Enter controller configuration mode to configure your E1 controller ports. See the Cisco AS5800 Universal Access Server Software Installation and Configuration Guide for details.

4

5800 (config-controller)# framing {crc4|no-crc4}

Entering framing crc4 configures framing to E1 with CRC1 .

Entering framing no-crc4 configures framing to E1 only.

5

5800 (config-controller)# linecode {ami|hdb3}

Entering linecode ami configures line code to AMI2 encoding.

Entering linecode hdb3 configures line code to HDB3 encoding.

6

5800 (config-controller)# clock source {internal|line [primary|secondary]}

Entering clock source internal configures the clock source to the internal clock.

Entering clock source line primary configures the clock source to the primary recovered clock.

Entering clock source secondary configures the clock source to the secondary recovered clock.

7

5800(config-controller)#  cas-group 1 timeslots 1-15, 17-31 type r1-modified {ani-dnis|dnis}

Configure the timeslots that belong to each E1 circuit for R1 Modified Signaling.4

•The cas-group # ranges from 0 to 30 for CE1.

•The timeslot # ranges from 1 to 31 for CE1.

•For the type, each cas-group can be configured as one of the Robbed Bit Signaling provisions.

•ani-dnis indicates R1 will collect ani and dnis information; dnis indicates R1 will collect only dnis information.

8

5800(config-controller-cas)# cas-custom 1

(Optional.) Enter the channel number to customize.

9

5800(config-controller-cas)# ^Z

5800#

%SYS-5-CONFIG_I: Configured from console by console

Return to enable mode by simultaneously pressing the Ctrl key and the z key.

This message is normal and does not indicate an error.

1 CRC = Cyclic Redundancy Check.

2 AMI = Alternate Mark Inversion.

3 HDB = High-Density Bipolar 3.

4 For a more detailed destription of the syntax and variables of this command see the section "Command Reference" later in this document.


Configuration Examples

The following is a sample R1 Modified Signaling configuration in Taiwan: 


Current configuration:

!

version 11.3

service timestamps debug datetime msec

no service password-encryption

!

hostname router

!

enable secret 5 $1$YAaG$L0jTcQ.nMH.gpFYXaOU5c.

!

no modem fast-answer

ip host dirt 223.255.254.254

ip multicast rpf-check-interval 0

isdn switch-type primary-dms100

!

!

controller T1 1/1/0

 framing esf

 linecode b8zs

 cablelength short 133

 pri-group timeslots 1-24

 fdl att

!

controller T1 1/1/1

 framing esf

 linecode b8zs

 cablelength short 133

 cas-group 1 timeslots 1-24 type r1-modified

 fdl att

!

controller T1 1/1/2

 framing esf

 linecode b8zs

 cablelength short 133

 pri-group timeslots 1-24

 fdl att

!




controller T1 1/1/3

 framing esf

 linecode b8zs

 cablelength short 133

 pri-group timeslots 1-24

 fdl att

!

.

.

.

Command Reference

The following command applies to R1 Modified Signaling.

cas-group

To configure R1 channel-associated signaling, use the cas-group controller configuration command. Use the no form of this command to disable channel associated signaling for one or more timeslots.

cas-group channel timeslots range type r1-modified {ani-dnis | dnis}
no cas-group channel timeslots range type r1-modified {ani-dnis | dnis}

Syntax Description

channel

Specifies a single channel group number. Replace the channel variable with a number between 0 and 30.

range

Specifies a timeslot range, which can be from 1 to 24 for T1, and from 1 to 31 for E1. You can specify a timeslot range (for example, 1-31), individual timeslots separated by commas (for example 1, 3, 5), or a combination of the two (for example 1-7, 8, 17-31). The 16th time slot is reserved for out-of-band signaling.

ani-dnis

Indicates R1 Modified Signaling will collect ani and dnis information.

dnis

Indicates R1 Modified Signaling will collect only dnis information.


Default

ani-dnis.

Command Mode

Controller configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.3 P.

Examples

The following example would configure R1 Modified Signaling on a Cisco AS5800 (T1 interface) and specify the collection of both ani and dnis information: 

5800(config-controller)# cas-group 1 timeslots 1-24 type r1-modified ani-dnis

5800(config-controller)# ^Z

5800# debug csm

Call Switching Module debugging is on


1d16h:%CONTROLLER-5-UPDOWN:Controller E1 1/1/0, changed state to up

*Dec 17 11:27:47.946:allocate slot 4 and port 2 is allocated

*Dec 17 11:27:47.946:CSM v(4/2) c(E1 1/1/0:0):CSM_PROC_IDLE: ev_DSX0_CALL.

*Dec 17 11:27:47.961:CSM v(4/2) c(E1 1/1/0:0):CSM_PROC_IC1_RING: ev_MODEM_OFFHOOK.

*Dec 17 11:27:49.413:CSM v(4/2) c(E1 1/1/0:0):CSM_PROC_IC2_COLLECT_ADDR_INFO: 
ev_IC_DNIS_INFO_COLLECTED.

*Dec 17 11:27:50.265:CSM v(4/2) c(E1 1/1/0:0):CSM_PROC_IC2_COLLECT_ADDR_INFO: 
ev_IC_ADDR_INFO_COLLECTED.

*Dec 17 11:27:50.265:CSM v(4/2) c(E1 1/1/0:0):CSM_PROC_IC4_WAIT_FOR_CARRIER: 
ev_DSX0_CONNECTED.


5800# show modem csm 1/4/2

VDEV_INFO:slot 4, port 2

vdev_status(0x00000001):VDEV_STATUS_ACTIVE_CALL.

csm_state(0x00000205)=CSM_IC5_CONNECTED, csm_event_proc=0x60665CB0, current call thru 
Channelize line

invalid_event_count=0, wdt_timeout_count=0

watchdog timer is not activated

wait_for_dialing:False, wait_for_bchan:

pri_chnl=(E1 1/1/0:0), vdev_chnl=(s4, c2)

start_chan_p=0, chan_p=61994BC4, time_slot=0

The calling party phone number = 

The called party phone number  = 6789

ring_no_answer=0, ic_failure=0, ic_complete=1

dial_failure=0, oc_failure=0, oc_complete=0

oc_busy=0, oc_no_dial_tone=0, oc_dial_timeout=0

remote_link_disc=0, busyout=0, modem_reset=0

call_duration_started=1d16h, call_duration_ended=00:00:00, total_call_duration=00:00:00


5800# debug mica msm

MICA modems state machine debugging is on

DA-Slot4#

1d16h:Msm2:MSM_IN_SERVICE:n_ring_ind:cc0x200 si5 dc3 ms0 cr56000,75

1d16h:Msm2:MSM_PREPARE:m_state_trans:newst MODEM_STATE_SETUP

1d16h:Msm2:MSM_SETUP:m_dig_det:di=0x23(#)

1d16h:Msm2:MSM_COLLECTING_DNIS:m_dig_det:di=0x41(A)

1d16h:Msm2:MSM_COLLECTING_DNIS:m_dig_det:di=0x36(6)

1d16h:Msm2:MSM_COLLECTING_DNIS:m_dig_det:di=0x37(7)

1d16h:Msm2:MSM_COLLECTING_DNIS:m_dig_det:di=0x38(8)

1d16h:Msm2:MSM_COLLECTING_DNIS:m_dig_det:di=0x39(9)

1d16h:Msm2:MSM_COLLECTING_DNIS:m_dig_det:di=0x42(B)

1d16h:Msm2:MSM_COLLECTING_ANI_PREFIX:m_dig_det:di=0x23(#)

1d16h:Msm2:MSM_COLLECTING_ANI:m_dig_det:di=0x41(A)

1d16h:Msm2:MSM_COLLECTING_ANI:m_dig_det:di=0x42(B)

1d16h:Msm2:MSM_COLLECTING_ANI_SUFFIX:t_timeout:

1d16h:Msm2:MSM_CALL_VERIFICATION:n_call_acc:

1d16h:Msm2:MSM_TRAING_NEGNG:m_state_trans:newst MODEM_STATE_CONNECT

1d16h:Msm2:MSM_TRAING_NEGNG:m_state_trans:newst MODEM_STATE_LINK

1d16h:Msm2:MSM_TRAING_NEGNG:m_state_trans:newst MODEM_STATE_TRAINUP

1d16h:Msm2:MSM_TRAING_NEGNG:m_state_trans:newst MODEM_STATE_EC_NEGOTIATING

1d16h:Msm2:MSM_TRAING_NEGNG:m_state_trans:newst MODEM_STATE_STEADY_STATE

Related Commands

debug csm

What to Do Next

For information on how to configure access servers, refer to the chapters, "Overview of Lines, Interfaces, and Controllers on Cisco Routers" and "Configuring Channelized E1 and Channelized T1," in the Dial Solutions Configuration Guide for Cisco IOS Release 11.3.

Refer to the following publications for additional software configuration information:

•Cisco AS5800 Universal Access Server Software Installation and Configuration Guide

•Release Notes for the Cisco AS5800 Access Server for Cisco IOS Release 11.3 T