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CISCO 1811 V92 MODEM PSTN DIAL PROBLEM

Hi,I am trying to implement DDR solution between two c1811 router using two analog lines connected to V92 port of each router as shown below-

LAN_1-1811_1===PSTN CLOUD===1811_2-LAN_2.

When i initiate interesting traffic from LAN_1 using access-list,the Dialer tries to dial other side router,but debug chat shows that integrated V.92(WIC-AM) modems are not able to make connection and i get an error "Chat script dialout finished, status = Connection timed out; remote host not responding" & TTY1: Line reset by "Async dialer".I have checked that analog lines are working fine and router configuration is correct and works fine with external modem.

When i do reverse telnet into this modem card and try to dial using ATDT command,i see that "RING" at other side and then "NO CARRIER" message comes.I tried to adjust S0 Register value to 1,but still connection is not made.

I have attached both 1811_1 & 1811_2 router config and debug output of 1811_1.

I will appreciate advice on the same and please let me know for any information on my test setup or configurations.

The modem register values are as follows: -

ATY$ AT COMMAND SET

E=001 M=000 Q=000

V=001 X=004 Y=000

OK

AT&$ AT COMMAND SET

&G=017 &H=012 &P=000

&D=002

ATS$ AT COMMAND SET

S000=001 S001=000 S002=043

S003=013 S004=010 S005=008

S006=002 S007=080 S008=002

S009=006 S010=014 S012=050

S014=012 S024=000 S030=000

S038=020 S040=000 S041=000

S042=000 S043=004 S044=180

S050=003 S051=001

AT\$ AT COMMAND SET

\T=016 \B=003 \N=003

\P=000 \V=000 \A=000

1 REPLY
Silver

Re: CISCO 1811 V92 MODEM PSTN DIAL PROBLEM

I have seen your Debug attachment.

%SYS-5-CONFIG_I: Configured from [chars] by [chars]

The router configuration has been changed.

This is notification message only. So please verify your configuration.

For further information click this link.

• Xmodem Console Download Procedure Using ROMmon

• Telnet, Console and AUX Port Passwords on Cisco Routers Configuration Example

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