Table Of Contents
R1 Modified Signaling for the Cisco AS5800 Access Server
R1 Modified Signaling for the Cisco AS5800 Access Server
Feature Summary
Enabling R1 Modified Signaling allows a Cisco AS5800 universal access server to talk to central office trunks that also use R1 Modified Signaling. R1 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
This type of signaling is not the same as ITU R1 signaling; it is R1 signaling modified for Taiwan specifically.
Note
Benefits
Cisco now supports native R1 signaling on both E1 and T1 interfaces. This version of software supports R1 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 are restrictions to the use of R1 Modified Signaling:
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Platforms
This feature is supported on the Cisco AS5800 universal access server.
Note
Prerequisites
The following are hardware and software prerequisites to enable R1 Modified Signaling:
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For information on upgrading your Cisco IOS images, modem portware, or modem code, go to the following locations:
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http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/as5800/5800_pw/index.htmOr, follow this path: Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5800: Portware.
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Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5800: Portware.Supported MIBs and RFCs
None.
Functional Description
The following diagram illustrates a service provider using R1 Signaling with E1 and a
Cisco AS5800 access server.Figure 1 Service Provider using E1 R1 Signaling with a Cisco AS5800
Configuration Tasks
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
5800> enable
Password: password
5800#
Enter enable mode.
Enter the password.
You have entered enable mode when the prompt changes to 5800#.
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)#.
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.
5800 (config-controller)# framing {sf|esf}
Entering framing sf configures framing to T1 with sf.
Entering framing esf configures framing to T1 only.
5800 (config-controller)# linecode {ami|b8zs}
Entering linecode ami configures line code to AMI1 encoding.
Entering linecode b8zs configures line code to b8zs encoding.
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.
5800(config-controller)# cas-group 1 timeslots 1-24 type r1-modified {ani-dnis|dnis}
Configure the timeslots that belong to each T1 circuit for R1 Modified Signaling. 2
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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
5800> enable
Password: password
5800#
Enter enable mode.
Enter the password.
You have entered enable mode when the prompt changes to 5800#.
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)#.
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.
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.
5800 (config-controller)# linecode {ami|hdb3}
Entering linecode ami configures line code to AMI2 encoding.
Entering linecode hdb3 configures line code to HDB3 encoding.
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.
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
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5800(config-controller-cas)# cas-custom 1
(Optional.) Enter the channel number to customize.
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 11.3service timestamps debug datetime msecno service password-encryption!hostname router!enable secret 5 $1$YAaG$L0jTcQ.nMH.gpFYXaOU5c.!no modem fast-answerip host dirt 223.255.254.254ip multicast rpf-check-interval 0isdn switch-type primary-dms100!!controller T1 1/1/0framing esflinecode b8zscablelength short 133pri-group timeslots 1-24fdl att!controller T1 1/1/1framing esflinecode b8zscablelength short 133pri-group timeslots 1-24fdl att!controller T1 1/1/2framing esflinecode b8zscablelength short 133pri-group timeslots 1-24fdl att!controller T1 1/1/3framing esflinecode b8zscablelength short 133pri-group timeslots 1-24fdl 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
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 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
Related Commands
debug modem csm
Debug Command
The following debug command applies to R1 Modified Signaling.
debug modem
If you are having trouble, use the debug modem command to enable the modem management Call Switching Module (CSM) debug mode:
debug modem csm [slot/port]
Syntax Description
slot
(Optional) Specifies the slot number you want to debug.
port
(Optional) Specifies the port number you want to debug.
Default
All slots and ports will be debugged.
Command Mode
EXEC mode
Usage Guidelines
This command first appeared in Cisco IOS Release 11.3.
Sample Output
The following is the output of debug modem csm for an incoming call:
5800# debug modem csm
5800#1.19.36.7 2001
Trying 1.19.36.7, 2001 ... Open
atdt111222333444555666
*Apr 7 12:39:42.475: Mica Modem(1/0): Rcvd Dial String(111222333444555666)
*Apr 7 12:39:42.475: CSM_PROC_IDLE: CSM_EVENT_MODEM_OFFHOOK at slot 1, port 0
*Apr 7 12:39:42.479: CSM_RX_CAS_EVENT_FROM_NEAT:(A001): EVENT_CHANNEL_LOCK at slot 1 and port 0
*Apr 7 12:39:42.479: CSM_PROC_OC4_DIALING: CSM_EVENT_DSX0_BCHAN_ASSIGNED at slot 1, port 0
*Apr 7 12:39:42.479: Mica Modem(1/0): Configure(0x1)
*Apr 7 12:39:42.479: Mica Modem(1/0): Configure(0x5)
*Apr 7 12:39:42.479: Mica Modem(1/0): Call Setup
*Apr 7 12:39:42.479: neat msg at slot 0: (1/0): Tx LOOP_CLOSURE (ABCD=1101)
*Apr 7 12:39:42.491: neat msg at slot 0: (0/0): Rx LOOP_CLOSURE (ABCD=1101)
*Apr 7 12:39:42.531: VDEV_ALLOCATE: slot 1 and port 3 is allocated.
*Apr 7 12:39:42.531: CSM_RX_CAS_EVENT_FROM_NEAT:(0004): EVENT_CALL_DIAL_IN at slot 1 and port 3
*Apr 7 12:39:42.531: CSM_PROC_IDLE: CSM_EVENT_DSX0_CALL at slot 1, port 3
*Apr 7 12:39:42.531: Mica Modem(1/3): Configure(0x0)
*Apr 7 12:39:42.531: Mica Modem(1/3): Configure(0x5)
*Apr 7 12:39:42.531: Mica Modem(1/3): Call Setup
*Apr 7 12:39:42.595: Mica Modem(1/0): State Transition to Call Setup
*Apr 7 12:39:42.655: Mica Modem(1/3): State Transition to Call Setup
*Apr 7 12:39:42.655: Mica Modem(1/3): Went offhook
*Apr 7 12:39:42.655: CSM_PROC_IC1_RING: CSM_EVENT_MODEM_OFFHOOK at slot 1, port 3
*Apr 7 12:39:42.671: neat msg at slot 0: (0/0): Tx LOOP_CLOSURE (ABCD=1101)
*Apr 7 12:39:42.691: neat msg at slot 0: (1/0): Rx LOOP_CLOSURE (ABCD=1101)
*Apr 7 12:39:42.731: CSM_RX_CAS_EVENT_FROM_NEAT:(A001): EVENT_START_TX_TONE at slot 1 and port 0
*Apr 7 12:39:42.731: CSM_PROC_OC4_DIALING: CSM_EVENT_DSX0_START_TX_TONE at slot 1, port 0
*Apr 7 12:39:42.731: Mica Modem(1/0): Generate digits:called_party_num= len=1
*Apr 7 12:39:42.835: Mica Modem(1/3): Rcvd Digit detected(#)
*Apr 7 12:39:42.835: CSM_PROC_IC2_COLLECT_ADDR_INFO: CSM_EVENT_KP_DIGIT_COLLECTED (DNIS=, ANI=) at slot 1, port 3
*Apr 7 12:39:42.855: neat msg at slot 0: (0/0): Tx LOOP_OPEN (ABCD=0101)
*Apr 7 12:39:42.871: neat msg at slot 0: (1/0): Rx LOOP_OPEN (ABCD=0101)
*Apr 7 12:39:42.899: Mica Modem(1/0): Rcvd Digits Generated
*Apr 7 12:39:42.911: CSM_RX_CAS_EVENT_FROM_NEAT:(A001): EVENT_END_TX_TONE at slot 1 and port 0
*Apr 7 12:39:42.911: CSM_PROC_OC4_DIALING: CSM_EVENT_DSX0_END_TX_TONE at slot 1, port 0
*Apr 7 12:39:42.911: Mica Modem(1/0): Generate digits:called_party_num=A len=1
*Apr 7 12:39:43.019: Mica Modem(1/0): Rcvd Digits Generated
*Apr 7 12:39:43.019: CSM_PROC_OC4_DIALING: CSM_EVENT_TONE_GENERATED at slot 1, port 0
*Apr 7 12:39:43.019: Mica Modem(1/3): Rcvd Digit detected(A)
*Apr 7 12:39:43.335: CSM_RX_CAS_EVENT_FROM_NEAT:(A001): EVENT_START_TX_TONE at slot 1 and port 0
*Apr 7 12:39:43.335: CSM_PROC_OC4_DIALING: CSM_EVENT_DSX0_START_TX_TONE at slot 1, port 0
*Apr 7 12:39:43.335: Mica Modem(1/0): Generate digits:called_party_num=111222333444555666 len=19
*Apr 7 12:39:43.439: Mica Modem(1/3): Rcvd Digit detected(1)
*Apr 7 12:39:43.559: Mica Modem(1/3): Rcvd Digit detected(1)
*Apr 7 12:39:43.619: Mica Modem(1/3): Rcvd Digit detected(1)
*Apr 7 12:39:43.743: Mica Modem(1/3): Rcvd Digit detected(2)
*Apr 7 12:39:43.859: Mica Modem(1/3): Rcvd Digit detected(2)
*Apr 7 12:39:43.919: Mica Modem(1/3): Rcvd Digit detected(2)
*Apr 7 12:39:44.043: Mica Modem(1/3): Rcvd Digit detected(3)
*Apr 7 12:39:44.163: Mica Modem(1/3): Rcvd Digit detected(3)
*Apr 7 12:39:44.223: Mica Modem(1/3): Rcvd Digit detected(3)
*Apr 7 12:39:44.339: Mica Modem(1/3): Rcvd Digit detected(4)
*Apr 7 12:39:44.459: Mica Modem(1/3): Rcvd Digit detected(4)
*Apr 7 12:39:44.523: Mica Modem(1/3): Rcvd Digit detected(4)
*Apr 7 12:39:44.639: Mica Modem(1/3): Rcvd Digit detected(5)
*Apr 7 12:39:44.763: Mica Modem(1/3): Rcvd Digit detected(5)
*Apr 7 12:39:44.883: Mica Modem(1/3): Rcvd Digit detected(5)
*Apr 7 12:39:44.943: Mica Modem(1/3): Rcvd Digit detected(6)
*Apr 7 12:39:45.063: Mica Modem(1/3): Rcvd Digit detected(6)
*Apr 7 12:39:45.183: Mica Modem(1/3): Rcvd Digit detected(6)
*Apr 7 12:39:45.243: Mica Modem(1/3): Rcvd Digit detected(B)
*Apr 7 12:39:45.243: CSM_PROC_IC2_COLLECT_ADDR_INFO: CSM_EVENT_DNIS_COLLECTED (DNIS=111222333444555666, ANI=) at slot 1, port 3
*Apr 7 12:39:45.363: Mica Modem(1/0): Rcvd Digits Generated
*Apr 7 12:39:45.891: neat msg at slot 0: (0/0): Tx LOOP_CLOSURE (ABCD=1101)
*Apr 7 12:39:45.907: neat msg at slot 0: (1/0): Rx LOOP_CLOSURE (ABCD=1101)
*Apr 7 12:39:46.115: neat msg at slot 0: (0/0): Tx LOOP_OPEN (ABCD=0101)
*Apr 7 12:39:46.131: neat msg at slot 0: (1/0): Rx LOOP_OPEN (ABCD=0101)
*Apr 7 12:39:46.175: CSM_RX_CAS_EVENT_FROM_NEAT:(A001): EVENT_START_TX_TONE at slot 1 and port 0
*Apr 7 12:39:46.175: CSM_PROC_OC4_DIALING: CSM_EVENT_DSX0_START_TX_TONE at slot 1, port 0
*Apr 7 12:39:46.175: Mica Modem(1/0): Generate digits:called_party_num= len=3
*Apr 7 12:39:46.267: Mica Modem(1/3): Rcvd Digit detected(#)
*Apr 7 12:39:46.387: Mica Modem(1/3): Rcvd Digit detected(A)
*Apr 7 12:39:46.447: Mica Modem(1/3): Rcvd Digit detected(B)
*Apr 7 12:39:46.447: CSM_PROC_IC2_COLLECT_ADDR_INFO: CSM_EVENT_ADDR_INFO_COLLECTED (DNIS=111222333444555666, ANI=) at slot 1, port 3
*Apr 7 12:39:46.507: Mica Modem(1/0): Rcvd Digits Generated
*Apr 7 12:39:46.507: CSM_PROC_OC4_DIALING: CSM_EVENT_ADDR_INFO_COLLECTED at slot 1, port 0
*Apr 7 12:39:47.127: CSM_RX_CAS_EVENT_FROM_NEAT:(0004): EVENT_CHANNEL_CONNECTED at slot 1 and port 3
*Apr 7 12:39:47.127: CSM_PROC_IC4_WAIT_FOR_CARRIER: CSM_EVENT_DSX0_CONNECTED at slot 1, port 3
*Apr 7 12:39:47.127: Mica Modem(1/3): Link Initiate
*Apr 7 12:39:47.131: neat msg at slot 0: (0/0): Tx LOOP_CLOSURE (ABCD=1101)
*Apr 7 12:39:47.147: neat msg at slot 0: (1/0): Rx LOOP_CLOSURE (ABCD=1101)
*Apr 7 12:39:47.191: CSM_RX_CAS_EVENT_FROM_NEAT:(A001): EVENT_CHANNEL_CONNECTED at slot 1 and port 0
*Apr 7 12:39:47.191: CSM_PROC_OC5_WAIT_FOR_CARRIER: CSM_EVENT_DSX0_CONNECTED at slot 1, port 0
*Apr 7 12:39:47.191: Mica Modem(1/0): Link Initiate
*Apr 7 12:39:47.227: Mica Modem(1/3): State Transition to Connect
*Apr 7 12:39:47.287: Mica Modem(1/0): State Transition to Connect
*Apr 7 12:39:49.103: Mica Modem(1/0): State Transition to Link
*Apr 7 12:39:52.103: Mica Modem(1/3): State Transition to Link
*Apr 7 12:40:00.927: Mica Modem(1/3): State Transition to Trainup
*Apr 7 12:40:00.991: Mica Modem(1/0): State Transition to Trainup
*Apr 7 12:40:02.615: Mica Modem(1/0): State Transition to EC Negotiating
*Apr 7 12:40:02.615: Mica Modem(1/3): State Transition to EC Negotiating
CONNECT 31200 /V.42/V.42bis
5800>
*Apr 7 12:40:05.983: Mica Modem(1/0): State Transition to Steady State
*Apr 7 12:40:05.983: Mica Modem(1/3): State Transition to Steady State+++
OK
ath
*Apr 7 12:40:09.167: Mica Modem(1/0): State Transition to Steady State Escape
*Apr 7 12:40:10.795: Mica Modem(1/0): State Transition to Terminating
*Apr 7 12:40:10.795: Mica Modem(1/3): State Transition to Terminating
*Apr 7 12:40:11.755: Mica Modem(1/3): State Transition to Idle
*Apr 7 12:40:11.755: Mica Modem(1/3): Went onhook
*Apr 7 12:40:11.755: CSM_PROC_IC5_OC6_CONNECTED: CSM_EVENT_MODEM_ONHOOK at slot 1, port 3
*Apr 7 12:40:11.755: VDEV_DEALLOCATE: slot 1 and port 3 is deallocated
*Apr 7 12:40:11.759: neat msg at slot 0: (0/0): Tx LOOP_OPEN (ABCD=0101)
*Apr
OK
7 12:40:11.767: neat msg at slot 0: (1/0): Rx LOOP_OPEN (ABCD=0101)
*Apr 7 12:40:12.087: neat msg at slot 0: (1/0): Tx LOOP_OPEN (ABCD=0101)
*Apr 7 12:40:12.091: neat msg at slot 0: (0/0): Rx LOOP_OPEN (ABCD=0101)
*Apr 7 12:40:12.111: CSM_RX_CAS_EVENT_FROM_NEAT:(A001): EVENT_CALL_IDLE at slot 1 and port 0
*Apr 7 12:40:12.111: CSM_PROC_IC5_OC6_CONNECTED: CSM_EVENT_DSX0_DISCONNECTED at slot 1, port 0
*Apr 7 12:40:12.111: Mica Modem(1/0): Link Terminate(0x6)
*Apr 7 12:40:12.779: Mica Modem(1/3): State Transition to Terminating
*Apr 7 12:40:12.839: Mica Modem(1/3): State Transition to Idle
*Apr 7 12:40:13.495: Mica Modem(1/0): State Transition to Idle
*Apr 7 12:40:13.495: Mica Modem(1/0): Went onhook
*Apr 7 12:40:13.495: CSM_PROC_IC6_OC8_DISCONNECTING: CSM_EVENT_MODEM_ONHOOK at slot 1, port 0
*Apr 7 12:40:13.495: VDEV_DEALLOCATE: slot 1 and port 0 is deallocated
5800#disc
Closing connection to 1.19.36.7 [confirm]
5800#
*Apr 7 12:40:18.783: Mica Modem(1/0): State Transition to Terminating
*Apr 7 12:40:18.843: Mica Modem(1/0): State Transition to Idle
5800#
Related Command
cas-group
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:
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