Table Of Contents
Basic V110 for MICA Modems on Cisco Access Servers
Transmission Speeds/Bearer Rates
Related Features and Technologies
ATDI Command (place V.110 call)
Example Debug Commands for Cisco AS5200 and Cisco AS5300
Example Debug Commands for Cisco AS5800
Basic V110 for MICA Modems on Cisco Access Servers
Feature Overview
This feature allows V.110 calls to be originated and terminated over ISDN. The V.110 recommendation of the ITU-T rate adapts a low speed connection to an ISDN-B channel allowing the remote station or terminal adaptor to use the fast call set-up times offered by ISDN. This feature enables GSM wireless connectivity.
This document describes the Cisco IOS commands and AT commands required to support V.110 on MICA modems for AS5X00 Access Servers.
This MICA V.110 implementation supports 60 modems per board on the Cisco AS5300 and supports other connect standards (V.34, V.90, etc.) in addition to V.110. Modems are not dedicated to V.110 only and are allocated dynamically. On the Cisco AS5200, 30 modems per board is supported and 72 modems per board is supported on the Cisco AS5800.
This V.110 implementation for calls on MICA modems are managed by special boardware and modem code, along with the appropriate Cisco IOS image, in a manner similar to other modulation standards.
Note
This document is in development. Portions of this document may not be complete or developed according to the current documentation standards. This document is subject to revision when the content is available and developed further. Please check the online version periodically until the document is completed according to the usual documentation standards.
Feature Summary
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Benefits
V.110 is a digital link access protocol and for Cisco access servers. It operates over an ISDN B channel. V.110 enables Cisco access servers to connect to ISDN terminal adapters requiring V.110 compatibility. This feature enables GSM wireless connectivity.
This ISDN feature is in addition to the existing analog capability of the MICA modems.
Also, some digital cellular networks support data applications via V.110 connecting from the cell phone. These networks place these V.110 calls on the PSTN for interconnecting to the ISP of the end-customer's choice. MICA V.110 supports data rates from 600 bps up to 38,400bps.
Cisco IOS show commands have been changed to display additional fields reflecting the V.110 capability. See the "Command Reference" section.
An added AT command, ATDI, allows the user to command a V.110 modem to originate a V.110 call. See the "Command Reference" section.
Restrictions
This basic feature allows a V.110 call to be originated and terminated. Synchronous V.110 is not supported. In addition, V.110 calls must terminate on a TTY asynchronous IOS interface.
Transmission Speeds/Bearer Rates
The following V.110 bearer rates and intermediate rates (ITU-T Recommendation Q.931) are supported:
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Related Features and Technologies
This feature requires special modem code to be downloaded to the MICA Modems. See the online CCO modem information page.
Related Documents
See the modem code online documentation for the platform you are using:
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http://www.cisco.com/univercd/cc/td/doc/product/access/fwpwinfo/index.htm
See also the following documents:
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Cisco IOS Software Configuration:
http://www.cisco.com/univercd/cc/td/doc/product/software/index.htm
Supported Platforms
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Prerequisites
Supporting boardware and modem code on the MICA modems and special versions of the CSM on certain platforms. See Firmware and Portware Information, under the "Related Documents" section.
Supported MIBs and RFCs
The current Modem Management MIB objects for MICA modems will also be used for V.110. One minor change is in the SNMP agent code. This change returns the correct modulation type for V.110 when it does a look up of the modulation for MICA modems.
List of Terms and Acronyms
Configuration Tasks
There are no configuration tasks. All commands in this feature are modified existing show modem commands.
Command Reference
This section documents modified commands. All other commands used with this feature are documented in the Cisco IOS Release 12.0 command references and the Cisco AS5800 online new feature documentation. For more information, see the documentation for the existing show modem commands.
No new IOS commands are being added to support V.110 on MICA. However, due to the new V.110 Connect Protocol, Connected Standard, Line Speeds (Bearer Rates) and counters, the code that handles the following show modem commands has been modified as listed in the following logical order:
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/drmodmgt.htm#xtocid10451223
See also show modem at:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/113aa/113aa_2/58cfeats/c5800uas.htm#19600
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/drmodmgt.htm#xtocid10451261
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/drmodmgt.htm#xtocid10451239
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/drmodmgt.htm#xtocid10451245
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/drmodmgt.htm#xtocid10451279
For the commands above, MICA Modem Management code has been modified to display the correct information for V.110 associated Connect Protocol and Connected Standard. In addition, the correct line speeds for V.110 related Bearer Rates have also be added to commands that display the information.
For other and related modem management commands, such as modem-at mode, see:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/drmodmgt.htm#xtocid104510
show Command Examples
The show modem command includes outputs for the show modem configuration command and the show modem connect-speeds command.
show modem
Fields that have been added or changed for this command are:
Modem Type V.110Protocol: ISDN ModeConnection Speeds 34000The show modem command example is as follows:
router# show modem 1/0Mdm Typ Status Tx/Rx G Duration RTS CTS DCD DTR1/0 V.110 Conn 9600/9600 0 10:12:19 x x x xModem 1/0, Mica Hex Modem (Managed), Async1, TTY1Firmware Rev: 2.7.0.6Modem config: Incoming and OutgoingProtocol: ISDN Mode, Compression: NoneManagement config: Status pollingRX signals: 0 dBmLast clearing of "show modem" counters never23 incoming completes, 2 incoming failures0 outgoing completes, 0 outgoing failures0 failed dial attempts, 0 ring no answers, 2 busied outs0 no dial tones, 0 dial timeouts, 0 watchdog timeouts0 no carriers, 0 link failures, 0 resets, 0 recover oob0 recover modem, 0 current fail count0 protocol timeouts, 0 protocol errors, 0 lost events0 ready poll timeoutsTransmit Speed Counters:Connection Speeds 75 300 600 1200 2400 4800# of connections 0 0 0 0 0 1Connection Speeds 7200 9600 12000 14400 16800 19200# of connections 1 4 0 3 0 8Connection Speeds 21600 24000 26400 28000 28800 29333# of connections 0 0 0 0 0 0Connection Speeds 30667 31200 32000 33333 33600 34000# of connections 0 0 0 0 0 0Connection Speeds 34667 36000 37333 38000 38400 38667# of connections 0 0 0 0 6 0Connection Speeds 40000 41333 42000 42667 44000 45333Receive Speed Counters:Connection Speeds 75 300 600 1200 2400 4800# of connections 0 0 0 0 0 1Connection Speeds 7200 9600 12000 14400 16800 19200# of connections 1 4 0 3 0 8Connection Speeds 21600 24000 26400 28000 28800 29333# of connections 0 0 0 0 0 0Connection Speeds 30667 31200 32000 33333 33600 34000# of connections 0 0 0 0 0 0Connection Speeds 34667 36000 37333 38000 38400 38667# of connections 0 0 0 0 6 0Connection Speeds 40000 41333 42000 42667 44000 45333# of connections 0 0 0 0 0 0Connection Speeds 46000 46667 48000 49333 50000 50667# of connections 0 0 0 0 0 0Connection Speeds 52000 53333 54000 54667 56000# of connections 0 0 0 0 0show modem operational-status
Fields that have been added or changed for this command are:
Parameter #1 Connect Protocol: ISDN ModeParameter #8 Connected standard V.110Parameter #41 V110 frames received bad:Parameter #42 V110 frames received good:Parameter #43 V110 frames transmitted:Parameter #44 V110 sync lost:The show modem operational-status command example is as follows:
router# show modem operational-status 1/0Modem(1/0) Operational-Status:Parameter #0 Disconnect Reason Info: (0x0)Type (=0 ): <unknown>Class (=0 ): OtherReason (=0 ): no disconnect has yet occurredParameter #1 Connect Protocol: ISDN ModeParameter #2 Compression: NoneParameter #3 EC Retransmission Count: 0Parameter #4 Self Test Error Count: 0Parameter #5 Call Timer: 37079 secsParameter #6 Total Retrains: 0Parameter #7 Sq Value: 7Parameter #8 Connected Standard: V.110Parameter #9 TX,RX Bit Rate: 9600, 9600Parameter #11 TX,RX Symbol Rate: 0, 0Parameter #13 TX,RX Carrier Frequency: 0, 0Parameter #15 TX,RX Trellis Coding: (n/a), (n/a)Parameter #16 TX,RX Preemphasis Index: 0, 0Parameter #17 TX,RX Constellation Shaping: (n/a), (n/a)Parameter #18 TX,RX Nonlinear Encoding: (n/a), (n/a)Parameter #19 TX,RX Precoding: (n/a), (n/a)Parameter #20 TX,RX Xmit Level Reduction: 0, 0 dBmParameter #21 Signal Noise Ratio: 0 dBParameter #22 Receive Level: 0 dBmParameter #23 Frequency Offset: 0 HzParameter #24 Phase Jitter Frequency: 0 HzParameter #25 Phase Jitter Level: 0 degreesParameter #26 Far End Echo Level: 0 dBmParameter #27 Phase Roll: 0 degreesParameter #28 Round Trip Delay: 0 msecsParameter #30 Characters transmitted, received: 247, 308Parameter #32 Characters received BAD: 0Parameter #33 PPP/SLIP packets transmitted, received: 9, 9Parameter #35 PPP/SLIP packets received (BAD/ABORTED): 0Parameter #36 EC packets transmitted, received OK: 0, 0Parameter #38 EC packets (Received BAD/ABORTED): 0Parameter #39 Robbed Bit Signalling (RBS) pattern: 0Parameter #40 Digital Pad: (n/a), Digital Pad Compensation: NoneParameter #41 V110 frames received bad: 0Parameter #42 V110 frames received good: 7417301Parameter #43 V110 frames transmitted: 7417310Parameter #44 V110 sync lost: 0show modem log
Fields that have been added or changed for this command are:
Connect Protocol: ISDN ModeConnected Standard V.110V110 frames received bad:V110 frames received good:V110 frames transmitted:V110 sync lost:The show modem log command example is as follows:
router# show modem log 1/1Modem 1/1 Events Log:.........4d06h :Modem State event:State: Train Up4d06h :Modem State event:State: EC Negotiating4d06h :Modem State event:State: Steady4d06h :RS232 event: RTS, DTR, CTS, DCD4d06h :Static event:Connect Protocol: ISDN ModeCompression: NoneConnected Standard: V.110TX,RX Symbol Rate: 0, 0TX,RX Carrier Frequency: 0, 0TX,RX Trellis Coding: (n/a), (n/a)Frequency Offset: 0 HzRound Trip Delay: 2 msecsTX,RX Bit Rate: 19200, 19200Robbed Bit Signalling (RBS) pattern: 0Digital Pad: (n/a), Digital Pad Compensation: None4d06h :Dynamic event:Sq Value: 7Signal Noise Ratio: 0 dBReceive Level: 0 dBmPhase Jitter Frequency: 0 HzPhase Jitter Level: 0 degreesFar End Echo Level: 0 dBmPhase Roll: 0 degreesTotal Retrains: 0EC Retransmission Count: 0Characters transmitted, received: 0, 0Characters received BAD: 0PPP/SLIP packets transmitted, received: 0, 0PPP/SLIP packets received (BAD/ABORTED): 0EC packets transmitted, received OK: 0, 0EC packets (Received BAD/ABORTED): 0V110 frames received bad: 0V110 frames received good: 51V110 frames transmitted: 64V110 sync lost: 0.........1d11h :Modem State event:State: Terminate1d11h :RS232 event: RTS, DTR, CTS, noDCD1d11h :Modem State event:State: Idle1d11h :End Connect event:Call Timer: 87 secsDisconnect Reason Info: (0xDF06)Type (=6 ): Tx (host to line) data flushing - OKClass (=31): Requested by hostReason (=6 ): network indicated disconnectTotal Retrains: 0EC Retransmission Count: 0Characters transmitted, received: 308, 50042Characters received BAD: 0PPP/SLIP packets transmitted, received: 10, 43PPP/SLIP packets received (BAD/ABORTED): 0EC packets transmitted, received OK: 0, 0EC packets (Received BAD/ABORTED): 0V110 frames received bad: 3V110 frames received good: 34493V110 frames transmitted: 34710V110 sync lost: 1.........10:37:18:Static event:Connect Protocol: ISDN ModeCompression: NoneConnected Standard: V.110TX,RX Symbol Rate: 0, 0TX,RX Carrier Frequency: 0, 0TX,RX Trellis Coding: (n/a), (n/a)Frequency Offset: 0 HzRound Trip Delay: 2 msecsTX,RX Bit Rate: 9600, 9600Robbed Bit Signalling (RBS) pattern: 0Digital Pad: (n/a), Digital Pad Compensation: None10:37:20:Dynamic event:Sq Value: 7Signal Noise Ratio: 0 dBReceive Level: 0 dBmPhase Jitter Frequency: 0 HzPhase Jitter Level: 0 degreesFar End Echo Level: 0 dBmPhase Roll: 0 degreesTotal Retrains: 0EC Retransmission Count: 0Characters transmitted, received: 0, 0Characters received BAD: 0PPP/SLIP packets transmitted, received: 0, 0PPP/SLIP packets received (BAD/ABORTED): 0EC packets transmitted, received OK: 0, 0EC packets (Received BAD/ABORTED): 0V110 frames received bad: 0V110 frames received good: 26V110 frames transmitted: 33V110 sync lost: 0.........1d06h :End Connect event:Call Timer: 105 secsDisconnect Reason Info: (0xDF06)Type (=6 ): Tx (host to line) data flushing - OKClass (=31): Requested by hostReason (=6 ): network indicated disconnectTotal Retrains: 0EC Retransmission Count: 0Characters transmitted, received: 247, 307Characters received BAD: 0PPP/SLIP packets transmitted, received: 9, 9PPP/SLIP packets received (BAD/ABORTED): 0EC packets transmitted, received OK: 0, 0EC packets (Received BAD/ABORTED): 0V110 frames received bad: 3V110 frames received good: 20758V110 frames transmitted: 20995V110 sync lost: 1ATDI Command (place V.110 call)
The calling user can manually communicate with a V.110 modem in order to originate a remote V.110 dialout from the called modem. The AT command set now includes the ATDI command (place V.110 call) to allow a V.110 call to be originated from the called modem. The user enters the ATDI command after establishing a session with the MICA modem in order to dial-out a V.110 call from the modem.
By specifying a value 8 in S29, the user causes the remote modem to implicitly assume that a V.110 connection is to be established. This command indicates that an ISDN call is being requested, and when used with the S29=8 command, results in modem code issuing a ISDN_DIALSTRING (0x45) request being made to the host.
After entering the S29=8 command, you can enter the desired user rate if different from the default value of 9600 bps. This command takes the form: S57=speed. For supported rates, see the "Restrictions" section. For example:
S57=19200Debug Commands
There are no debug commands specific to this feature. Existing ISDN debug commands can be used.
Example Debug Commands for Cisco AS5200 and Cisco AS5300
router# debug isdn q931router# debug modem csmrouter# term monExample Debug Commands for Cisco AS5800
router# debug isdn q931router# debug csmrouter# term mon
