2811 w/ NM-1CE1T1-PRI & PVDM2-36DM - Modem lines being marked "B" Bad

We recently setup a new 2811 router (IOS 15.0(1)M7) for remote dialup access. It has a ISDN PRI network module NM-1CE1T1-PRI and a 36 port Digital Modem Module (PVDM2-36DM) installed to receive the inbound modem calls.
When the router is booted up, inbound remote dialup connections work fine for several hours. Then the router digital modem lines begin to stop working. For example, an inbound call is made but the modem tone does not answer. However a "show modem call-stats" shows that a line becomes active with a "*" symbol. When the call is hung up, the line remains in an active "*" state. Eventually the state changes to a "B - Modem is marked bad and cannot be used for taking calls". This symptom will repeat itself with each new inbound call until all of the lines are marked "B". Only a router reboot will temporarily correct the problem.
Additional symptom, "show modem version" changes to "NiOS Not Responding".
#sh modem ver
Slot 0:
PVDM 1: PVDMII-36DM - HW Version 1, FPGA Version 3.3, NiOS Not Responding
Modem 0/386-0/397:
PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F
Firmware: Exp_V3_12_2
Modem 0/398-0/409:
PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F
Firmware: Exp_V3_12_2
Modem 0/410-0/421:
PCI Classid: 0x07800001 Bootrom Rev: 0x00005601 Diag Result: 0x0000007F
Firmware: Exp_V3_12_2

Hi Ismel,
Modem firmware looks good to me but you can still try a firmware upgrade to V3_12_3.
If it is random number selection of bad modem then I suspect that it's an ISP issue and B-channel of ISP while termination of call, leaving the modem in Bad state.
HTH
Amit

Similar Messages

No carrier from PVDM2-36DM via ISDN PRI link

The network topology is
Modem --> [FXS][cisco 2821][E1] --> ISDN PRI --> [E1][cisco 2811][PVDM2-36DM]
ISDN PRI link is operated correctly, debug isdn q931 shows that connection is established. Info message is
*Jul 23 06:27:45.407: %ISDN-6-CONNECT: Interface Serial1/0:1 is now connected to 555 N/A
Unfortunately, no carrier signal is going from modem to line.
Configuration of Cisco Routers is below.
1st (2821)
==========
controller E1 0/2/0
framing NO-CRC4
pri-group timeslots 1-2,16
interface Serial0/2/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-qsig
isdn incoming-voice modem
no cdp enable
dial-peer voice 1 pots
destination-pattern 555
port 0/3/0
voice-port 0/3/0
cptone RU
dial-peer voice 888 pots
destination-pattern .T
port 0/2/0:15
2nd (2811)
==========
controller E1 1/0
framing NO-CRC4
pri-group timeslots 1-2,16
interface Serial1/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-qsig
isdn timer T310 120000
isdn not-end-to-end 64
isdn protocol-emulate network
isdn incoming-voice modem
no cdp enable
line 0/322 0/357
modem InOut

> The PVDM2-DM works only with NM-xT1/E1.
Yes, of course, it is well known fact. We are using NM-1CE1T1-PRI. See "show diag" output below.
Slot 0:
C2811 Motherboard with 2FE and integrated VPN Port adapter, 2 ports
Port adapter is analyzed
Port adapter insertion time unknown
EEPROM contents at hardware discovery:
PCB Serial Number : FOC11070F5L
Hardware Revision : 1.0
Top Assy. Part Number : 800-26920-03
Board Revision : A0
Deviation Number : 0
Fab Version : 03
RMA Test History : 00
RMA Number : 0-0-0-0
RMA History : 00
Processor type : 87
Hardware date code : 20070214
Chassis Serial Number : FHK1109U00A
Chassis MAC Address : 001b.2aa3.c1c8
MAC Address block size : 24
CLEI Code : COM7C00ARA
Product (FRU) Number : CISCO2811
Part Number : 73-10258-04
Version Identifier : V04
EEPROM format version 4
EEPROM contents (hex):
0x00: 04 FF C1 8B 46 4F 43 31 31 30 37 30 46 35 4C 40
0x10: 03 E7 41 01 00 C0 46 03 20 00 69 28 03 42 41 30
0x20: 88 00 00 00 00 02 03 03 00 81 00 00 00 00 04 00
0x30: 09 87 83 01 32 3F 46 C2 8B 46 48 4B 31 31 30 39
0x40: 55 30 30 41 C3 06 00 1B 2A A3 C1 C8 43 00 18 C6
0x50: 8A 43 4F 4D 37 43 30 30 41 52 41 CB 8F 43 49 53
0x60: 43 4F 32 38 31 31 20 20 20 20 20 20 82 49 28 12
0x70: 04 89 56 30 34 20 D9 02 40 C1 FF FF FF FF FF FF
PVDM Slot 0:
36 port PVDMII digital modem PVDM daughter card
Hardware Revision : 1.0
Part Number : 73-10102-03
Board Revision : C0
Deviation Number : 0
Fab Version : 03
PCB Serial Number : FOC10354YRW
RMA Test History : 00
RMA Number : 0-0-0-0
RMA History : 00
Processor type : 00
Product (FRU) Number : PVDM2-36DM
Version Identifier : V01
EEPROM format version 4
EEPROM contents (hex):
0x00: 04 FF 40 04 90 41 01 00 82 49 27 76 03 42 43 30
0x10: 88 00 00 00 00 02 03 C1 8B 46 4F 43 31 30 33 35
0x20: 34 59 52 57 03 00 81 00 00 00 00 04 00 09 00 CB
0x30: 8A 50 56 44 4D 32 2D 33 36 44 4D 89 56 30 31 20
0x40: D9 02 40 C1 FF FF FF FF FF FF FF FF FF FF FF FF
0x50: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
Slot 1:
NM-1CE1T1_PRI Port adapter, 1 port
Port adapter is analyzed
Port adapter insertion time unknown
EEPROM contents at hardware discovery:
Hardware Revision : 1.0
Top Assy. Part Number : 800-21550-02
Board Revision : A0
Deviation Number : 0-0
Fab Version : 03
PCB Serial Number : FOC104753CA
RMA Test History : 00
RMA Number : 0-0-0-0
RMA History : 00
Fab Part Number : 28-5935-03
Manufacturing Test Data : 00 00 00 00 00 00 00 00
Field Diagnostics Data : 00 00 00 00 00 00 00 00
Product (FRU) Number : NM-1CE1T1-PRI
Version Identifier : V01
EEPROM format version 4
EEPROM contents (hex):
0x00: 04 FF 40 03 9D 41 01 00 C0 46 03 20 00 54 2E 02
0x10: 42 41 30 80 00 00 00 00 02 03 C1 8B 46 4F 43 31
0x20: 30 34 37 35 33 43 41 03 00 81 00 00 00 00 04 00
0x30: 85 1C 17 2F 03 C4 08 00 00 00 00 00 00 00 00 C5
0x40: 08 00 00 00 00 00 00 00 00 CB 8D 4E 4D 2D 31 43
0x50: 45 31 54 31 2D 50 52 49 89 56 30 31 20 FF FF FF
0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

PVDM2-12DM compatibility with HWIC-1CE1T1-PRI

Hi there,
I'm hoping someone can assist. The setup i am trying to get working is the following
User dials in over POTS to an ISDN30 Line. The ISDN30 line (3rd Party Supplier) is connected to our 2911 via a HWIC-1CE1T1-PRI module. We have inserted a PVDM2-12DM into the router to handle the POTS call.
Problem we have is that we cannot seem to get a modem tone when the user dials in. The ISDN line connects and the debug modem command shows the modem SETUP & INIT phase - see below
Aug 13 12:58:52.341: CSM: MODEM_REPORT from 0/0/0:0, call_id=0x61, event=0x1, cause=0x0, dchan_idb=0x2B2C837C
Aug 13 12:58:52.341: CSM: called_number 'number removed' modem_pool 2AA6CE14 deny_call FALSE
Aug 13 12:58:52.341: CSM: Next free modem = 0/202; statbits = 10020
Aug 13 12:58:52.341: Modem 0/202 CSM: modem is allocated, modems free=-1
Aug 13 12:58:52.341: Modem 0/202 CSM: Incoming call from Unknown to 'number removed', id 0x61
Aug 13 12:58:52.341: Modem 0/202 CSM: (CSM_PROC_IDLE)<--ISDN_CALL
Aug 13 12:58:52.453: CSM: MODEM_REPORT from 0/0/0:0, call_id=0x61, event=0x4, cause=0x0, dchan_idb=0x2B2C837C
Aug 13 12:58:52.453: Modem 0/202 CSM: MODEM_REPORT rcvd DEV_CONNECTED for call_id 0x61
Aug 13 12:58:52.453: Modem 0/202 CSM: (CSM_PROC_MODEM_RESERVED)<--ISDN_CONNECTED
Aug 13 12:58:52.453: Modem 0/202 CSMV12: SETUP(Answer) ISDN 0/0:0
Aug 13 12:58:52.453: Modem 0/202 CSMV12: configured for Answer(A-law) mode, with Null signaling, 0x0 tone detection
Aug 13 12:58:52.453: Modem 0/202 CSMV12: INIT(Answer) ISDN 0/0:0
Aug 13 12:58:52.453: %ISDN-6-CONNECT: Interface Serial0/0/0:0 is now connected to N/A N/A
Aug 13 12:58:52.485: CSM: csm_modem_event called
Aug 13 12:58:52.485: Modem 0/202 CSM: (CSM_PROC_WAIT_FOR_CARRIER)<--CSM_EVENT_MODEM_SETUP Aug 13 12:58:52.341: CSM:
but there is no modem tone or any more output from the debug commands.
The ISDN line is working fine as a normal ISDN dial in is successful.
Has any one tried this before or is there a known issue with this solution?

Updated the IOS but made no difference. Turns out i was missing the line 'network-clock-participate wic 0' Added this to the config and managed to get incoming POTS calls. Only problem now is that the PITS call won't stay up for more than 5 seconds. Looking at the Modem AT registry settings.

X.75 ISDN test setup with 2811 and PVDM2-12DM modem

Hi all,
We have a customer that requires ISDN-X.75 connection as a back-up for IP. This is used by emergency services that require redundancy. We have to build a test set-up. We have two routers with the modem cards and with HWIC-1CE1T1-PRI= cards. We need to build a test set-up to simulate an incoming call. With ISDN-V110 we could use one of the routers to place an outgoing call to the other router. This set-up is not possible with X.75, since the card can not dail out. What would be the best/cheapest/simplest approach to build this test set-up?
My involvement in this project is to build a Perl script that collects data via IOS using expect. If someone has the procedure to collect the calling and called line information for a connection with an example I would be very grateful. Our routers run Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version 12.4(24)T1, RELEASE SOFTWARE (fc3).
For V110/V.34 and X.25 the tty/vty is collected by issueing a show tcp to relate an IP connection that is created to the tty/vty. The tty/vty port is then correlated to the calling and called line id. This is done with show x25 vc for X.25 or show modem csm for V.110/V.34. We need something similar for X.75 to distill the calling and called line IDs for a given TCP connection.
Thanks in advance!

It colud be Hardware(Digital Modem Module ) problem.
Try this link:
http://www.cisco.com/en/US/products/ps6441/products_feature_guide09186a00806b941f.html#wp1068376

Nm-1CE1T1-PRI on 2821 and 2811

Hi
How many NM-1ce1t1-pri modules can be installed on cisco 2821 and 2811 ?
Thanks.

There is only one NM slot on the 2811 and 2821 so you can only fit one NM-1CE1T1-PRI.
Hope this helps.

Difference between NM-1CE1T1-PRI and NM-HDV2-1T1/E1

please if any one can give me the difference between NM-1CE1T1-PRI and NM-HDV2-1T1/E1

Hi Ahmad,
NM-1CE1T1-PRI does *not* support voice. Please refer to the following urls:
Cisco E1/T1 ISDN PRI Network Module - Data Sheet
http://www.cisco.com/en/US/products/hw/modules/ps2797/products_data_sheet09186a0080189f95.html
Voice Hardware Compatibility Matrix (Cisco 17/26/28/36/37/38xx, VG200, Catalyst 4500/4000, Catalyst 6xxx)
http://www.cisco.com/en/US/products/hw/routers/ps259/products_tech_note09186a00800e73f6.shtml
Relevant Interfaces and Modules
http://www.cisco.com/en/US/products/ps5855/products_relevant_interfaces_and_modules.html
-Vaibhav

Can HWIC-1CE1T1-PRI support voice applications

The product sheet and another helpful forum post clearly states that the HWIC-1CE1T1-PRI does NOT support voice applications on the PRI, only data applications. However, running 15.2(1)T when we configure a PRI group, it seems to imply that it can support a voice application with a command option to the PRI-group.
dal-rtr02(config-controller)#pri-group timeslots 1-24
%PRI-group is created for data application only.
%For voice application, please remove this pri-group, then configure pri-group again with voice-dsp option.
What gives? I cannot find this command documented anywhere. What does the "voice-dsp" option for the "pri-group timeslots" do?
Should we assume this card can STILL not be used for SIP/TDM Voice gateway services?
Thanks for any tips/confirmation you can provide.
Kris

Understood, but what is this "voice-dsp" option for on the end of the "pri-group timeslots" command?
This seems undocumented.
The router output is confusing and implies you could use the "voice-dsp" option to enable voice application. What is this all about? Best ignored I guess. The customer is now buying the correct hardware.

Very slow download speed though modem line rate no...

Hi
I recently noticed (today, 31st December) that our download speed had dropped very low, to approx 0.5Mbps. The upload speed is normal, approx 1Mbps. The modem line rate is however normal (8Mbps dowm, 1Mbps up). I have checked the download speed using http://speedtest.btwholesale.com/. I am at postcode SK237FN and have had consistently reliable download speeds for several years, 5-7Mbps.
Please help!
I already tried rebooting my router but this has not improved matters.
Thanks...
Test Result
Best Effort Test: -provides background information.
Download Speed
0.59 Mbps
0 Mbps
7.15 Mbps
Max Achievable Speed
Download speedachieved during the test was - 0.59 Mbps
For your connection, the acceptable range of speeds is 2 Mbps-7.15 Mbps.
IP Profile for your line is - 7.2 Mbps
Solved!
Go to Solution.

Hi
Thanks for your quick reply.
I don't use a BT "home hub"; I use a Billion router, ADSL status below.
The speedtest was performed using a wired connection.
BR
Mike
Mode
ADSL_2plus
Traffic Type
ATM
Status
Up
Link Power State
L0
Downstream
Upstream
Line Coding (Trellis)
On
On
SNR Margin (dB)
4.2
6.3
Attenuation (dB)
33.0
15.9
Output Power (dBm)
0.0
12.8
Attainable Rate (Kbps)
9184
1056
Rate (Kbps)
7438
1052
MSGc (# of bytes in overhead channel message)
59
10
B (# of bytes in Mux Data Frame)
232
150
M (# of Mux Data Frames in FEC Data Frame)
1
1
T (Mux Data Frames over sync bytes)
1
1
R (# of check bytes in FEC Data Frame)
16
0
S (ratio of FEC over PMD Data Frame length)
0.9979
4.5584
L (# of bits in PMD Data Frame)
1996
265
D (interleaver depth)
32
1
Delay (msec)
8
1
INP (DMT symbol)
1.00
0.00
Super Frames
364092
322883
Super Frame Errors
63
0
RS Words
23665906
882081
RS Correctable Errors
1466757
0
RS Uncorrectable Errors
711
0
HEC Errors
702
0
OCD Errors
0
0
LCD Errors
0
0
Total Cells
103594167
14634218
Data Cells
24717224
1770221
Bit Errors
0
0
Total ES
14
0
Total SES
1
0
Total UAS
76
76

Ask module E1 ISDN PRI (for data modem)

Hello,
my topology like this :
in the headoffice, I Have cisco 2911 (no pvdm card) and ISDN PRI from telco,
in the branch, i use modem Atrie 288LCD for dial .
what is the modules should i buy for cisco 2911 in the headoffice ..?
Thanks

http://www.cisco.com/en/US/prod/collateral/modules/ps2641/product_data_sheet0900aecd8050918e.html

2811 with NM-2CE1T1-PRI module

I have installed an NM-2CE1T1-PRI module in a Cisco 2811 router and issued the "card type T1 1" command as well as the "controller t1 1/0" and "controller t1 1/1" commands and sub-commands as required, however, the associated serial interfaces never get defined in the router. I am using IOS version:
c2800nm-advsecurityk9-mz.124-17a.bin
Any ideas?

problem resolved .... channel-group command never dropped in from script .....

USB Modem not being recognised in OSX

Sorry if this is being posted in the wrong forum.
I have an oldish Usb modem (Intel(R) AnyPoint(R) DSL Modem 3240 http://www.intel.com/support/network/dslmodems/sb/CS-009978.htm) that I have been using for a while with my PC laptop.
I have recently updated to a MacBook and was expecting this modem to be fine since it has worked succesfully with a friends older iBook (he simply plugged in the usb cable and was able to connect to the internet once I gave him the Username/Password. No software installation was required) but on my MacBook the modem doesnt seem to be recognised.
I have followed the install instructions to the letter but when it comes to plugging in the usb modem nothing happens and no modem is found (the l.e.d on the front of the modem stays off)
If anyone has any suggestions that would be great. I only need access to broadband very occassionaly and would like to avoid having to buy a new modem. Thanks
MacBook Mac OS X (10.4.6)

Generally usb modems don't work or don't work well on Macs
IMO, that is a bit of a sweeping statement. Most people in the UK use a USB modem, not least because they were supplied free by your ISP.
Get a modem with ethernet
Better still get a router, which what many UK ISPs now provide free.

Slow DSL is normal for my area. Switching from modem to router good or bad?

I live out in the country where DSL is a luxery afforded to me my a Home Run Hookup. I currently use the Westell 6100G supplied by Verizon. Curious if I can switch to a router to use laptop and desktop at the same time? Speed is ~ 0.95.
Solved!
Go to Solution.

You can. Just bridge the Westell 6100G and insert your own router into the mix. You'll want to make sure your router is set up to use PPPoE so that it can obtain an IP address from Verizon (in most cases).
Here's a guide. http://www.verizon.com/support/residential/internet/highspeed/networking/setup/questionsthree/123756...
Reverting the settings back is as simple as setting the modem back to PPPoE.
Speed here doesn't matter too much. That 0.96Mbps you're getting will be divided across the machines based on how each machine uses the connection.
========
The first to bring me 1Gbps Fiber for $30/m wins!

2811 modem disconnecting problem

Hi there am having an issue with digital modems disconnecting on a cisco 2811. The router has PVDM2-36DM card and hwic-1ce1t1-pri E1 interface installed.
The E1 is up and I can dialout but the calls drop after 24-30 secs.
I have issued the debug modem csm and the following output is shown.
ebug modem s csm
Modem Management Call Switching Module debugging is on
Dial_SRV#
*May 16 12:13:37.495: Modem 0/322 CSM: received ASYNC_DTR_UP for line 322
Dial_SRV#
*May 16 12:13:40.455: CSM: csm_modem_event called
*May 16 12:13:40.455: Modem 0/322 CSM: Called Number Rcvd = 07879605414
*May 16 12:13:40.455: Modem 0/322 CSM: Dial String to be processed (07879605414)
*May 16 12:13:40.455: Modem 0/322 CSM: End of Dial String
*May 16 12:13:40.455: Modem 0/322 CSM: (CSM_PROC_IDLE)<--MODEM_DIAL_OUT
*May 16 12:13:40.483: CSM: csm_modem_event called
*May 16 12:13:40.483: Modem 0/322 CSM: (CSM_PROC_OC_ISDN_PROCESSING_CALL)<--CSM_EVENT_MODEM_SETUP
*May 16 12:13:40.627: CSM: MODEM_REPORT from 0/0/0:11, call_id=0x800A, event=0x3, cause=0x0, dchan_idb=0x462427A0
Dial_SRV#
*May 16 12:13:40.627: Modem 0/322 CSM: (CSM_PROC_OC_ISDN_PROCESSING_CALL)<--ISDN_BCHAN_ASSIGNED
Dial_SRV#
*May 16 12:13:45.443: %ISDN-6-CONNECT: Interface Serial0/0/0:11 is now connected to 07879605414 N/A
Dial_SRV#
*May 16 12:13:45.443: CSM: MODEM_REPORT from 0/0/0:11, call_id=0x800A, event=0x4, cause=0x0, dchan_idb=0x462427A0
*May 16 12:13:45.443: Modem 0/322 CSM: MODEM_REPORT rcvd DEV_CONNECTED for call_id 0x800A
*May 16 12:13:45.443: Modem 0/322 CSM: (CSM_PROC_OC_ISDN_CONNECT_PENDING)<--ISDN_CONNECTED
technolog_Dial_SRV#
*May 16 12:13:59.851: CSM: csm_modem_event called
*May 16 12:13:59.851: Modem 0/322 CSM: (CSM_PROC_WAIT_FOR_CARRIER)<--MODEM_CONNECTED
Dial_SRV#
*May 16 12:14:09.903: Modem 0/322 CSM: (CSM_PROC_CONNECTED)<--ASYNC_DTR_DOWN
*May 16 12:14:09.983: CSM: csm_modem_event called
*May 16 12:14:09.983: Modem 0/322 CSM: (CSM_PROC_DISCONNECTED)<--MODEM_DISCONNECTED
*May 16 12:14:09.983: Modem 0/322 CSM: Stopping dm tone timer
*May 16 12:14:09.987: Modem 0/322 CSM: (CSM_PROC_DISCONNECTED)<--QUEUED_DISCONNECT
*May 16 12:14:09.987: Modem 0/322 CSM: Stopping dm tone timer
*May 16 12:14:09.987: Modem 0/322 CSM: CSM_MODEM_DEALLOCATE: modem is deallocated
*May 16 12:14:09.987: CSM: called_party_num '07879605414'
*May 16 12:14:09.987: Modem 0/322 CSM: (CSM_PROC_IDLE)<--ASYNC_DTR_DOWN
*May 16 12:14:09.987: %ISDN-6-DISCONNECT: Interface Serial0/0/0:11 disconnected from 07879605414 , call lasted 24 seconds
Dial_SRV#
*May 16 12:14:10.063: CSM: csm_modem_event called
*May 16 12:14:10.063: Modem 0/322 CSM: (CSM_PROC_IDLE)<--MODEM_DISCONNECTED
*May 16 12:14:10.151: CSM: MODEM_REPORT from 0/0/0:11, call_id=0x800A, event=0x0, cause=0x0, dchan_idb=0x462427A0
*May 16 12:14:10.151: CSM: MODEM_REPORT rcvd DEV_IDLE for call_id 0x800A, modem not found due to wrong b channel number or b channel is deallocated
*May 16 12:14:10.987: Modem 0/322 CSM: received ASYNC_DTR_UP for line 322
Dial_SRV#
What stands out is the following line 'modem not found due to wrong b channel number or b channel is deallocated'
I have attached the full config and in it I have configured the time-slots 1-12,16 This is because the organisation does not have the full E1 but only first 12 channels 16 is the d channel.
Any assistance would be much appreciated
Thanks

Hello folks,
I have found the problem.It seems that the software being used on the server to dial out to the remote devices required a modem initialisation string.
We tested dialing out with a normal windows dialup connection and this work perfectly.

PRI + PVDM modems - set IP destination based on DNIS

I have the following setup:
2811 router
PVDM2-12DM modem module on motherboard
NM-1CE1T1-PRI PRI card
The PRI has a range of numbers assigned to it, but I need to be able to direct dial-in traffic to specific backend IP addresses, based on the number the user dials in to reach the router (the DNIS). I am familiar with the autocommand function used in line configs and have used it before with asynch attached modems to trigger telnet sessions, but never with PRI. Is it possible?
Can anyone provide some links to documetnation or advice on how to set this up?
thanks very much.

Thanks for the link, its a great help! However I am unable to configure a modem-pool. In global config mode "modem-pool" is an unrecognised command. There is no problem with the modems as the router recognises the PVDM2 modem bank when I show diagnostics.
When issuing 'sh line' I can also see the 12 modem lines 0/322 - 0/333. They also show up automatically as 12 individual asynch interfaces in the config.
Im running IOS 12.4(9)T4
Could it be there is alternative config required for these types of modems?
Thanks again,

Remotely Access router 2811 via AUX and modem speed configuration

I have got 2811 router that is connected to analogue modem (56000), and my PC is connected to another analogue modem (33000)
The intial configuration for the router was :
Router2811#show run | begin line aux
line aux 0
exec-timeout 20 0
password xxx
logging synchronous
login
modem InOut
stopbits 1
flowcontrol hardware
Router2811#show line
Tty Line Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int
* 0 0 CTY - - - - - 0 0 0/0 -
* 1 1 AUX 9600/9600- inout - - - 0 0 10/0 -
322 322 VTY - - - - - 0 0 0/0 -
323 323 VTY - - - - - 0 0 0/0 -
324 324 VTY - - - - - 0 0 0/0 -
325 325 VTY - - - - - 0 0 0/0 -
326 326 VTY - - - - - 0 0 0/0 -
Line(s) not in async mode -or- with no hardware support:
2-321
It did not work when remotely I tried to login to the router !!! it kept disconne
What I did was this :
Router2811#config ter
Router2811(config)#line 1
Router2811(config-line)# modem autoconfiguration discovery
The router automatically discover modem's speed 115200 and replaced the 9600 in the configuration above.
Router2811#show run | begin line aux
line aux 0
exec-timeout 20 0
password 7 1040074B5240130C
logging synchronous
login
modem InOut
speed 115200,,,,,,,,this has been added to the configuration as well
stopbits 1
flowcontrol hardware
Router2811#show line
Tty Line Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int
* 0 0 CTY - - - - - 0 0 0/0 -
* 1 1 AUX 115200/115200- inout - - - 0 0 10/0,,,,,before it was 9600
322 322 VTY - - - - - 0 0 0/0 -
323 323 VTY - - - - - 0 0 0/0 -
324 324 VTY - - - - - 0 0 0/0 -
325 325 VTY - - - - - 0 0 0/0 -
326 326 VTY - - - - - 0 0 0/0 -
Line(s) not in async mode -or- with no hardware support:
2-321
Now remotely I was able to access the router.
But when I tried to reduce the speed from 115200 to 56000 (modem speed), my modem got disconnected and then I reduced the speed to 9600, but same problem happened ( modem got disconnected ).
Modem got disconnected after I received these funny characters :
Ã¦â¬Ã¦â¬fâ¬Ëâ¬Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â
Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â â â¬â â¬Ã¦â¬
Ã¦â¬Ã¦â¬fâ¬Ëâ¬Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦
â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â â â¬â â¬Ã¦â¬
Ã¦â¬Ã¦â¬fâ¬Ëâ¬Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦â Ã¦
â Ã¦â Ã¦â â â¬â â¬Ã¦â¬Ëâ¬â¬~ffâ¬ËÃ¾fâ ``fËâ â¬â â¬Ã¦â¬Ëâ¬â¬â¬ËËfxfÅ¾ Å¾Ã¦â Ã¸ËffÅ¾fx â¬â¬â¬~Ë

What I did is this :
I dropped the PC's speed from 115200 to 57600,and it worked without seeing funny characters.
I have not touch the speed on the router side, I left it as it is.
What be the case if I reduce the AUX's rooter speed ? When I tried to change it by doing this :
Router2811#config line 1
Router2811(config-line)#speed 56000
Failed to ,,,,,,I do not remember right now
Why it gave me failed error message !!!!!
Thanks

2811 w/ NM-1CE1T1-PRI & PVDM2-36DM - Modem lines being marked "B" Bad

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