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New Member

Dial in problem

Hello,

We are using Cisco Routers with a PRI E1 Controller and 30 Mica Modems to call devices in the PSTN.

Our devices are also able to dial in by themself.

With modems directly connected to a PC it is no problem to accept the calls and receive their data.

The idea was to use the Cisco Modems in the Router for this purpose.

For dialing out we use telnet to connect to the modem lines make the call and retrieve the data.

If the line is configured:

no flush-at-activation

modem InOut

no exec

transport input telnet

transport output lat pad v120 lapb-ta mop telnet rlogin udptn nasi ssh

escape-character NONE

the modems take an incoming call but no telnet connection to the port is possible.

If a telnet connection to the port is present and an incoming call occurs, the call is not taken and BUSY is signaled to the caller.

It seems to be impossible to handle incoming calls with the internal Cisco Mica Modems this way.

My questions are:

- Is it actually possible to use the Cisco Modems for dial in calls from devices that do not speak a Cisco supported protocol ?

- Is there an other way to solve this problem? ( maybe an automatic socket connection to another server in the net, who handles the incoming calls data? )

Thank you very much for your answers!

Our configuration:

IOS (tm) 3600 Software (C3620-JK9O3S-M), Version 12.2(16), RELEASE SOFTWARE (fc3)

cisco 3620 (R4700) processor (revision 0x81) with 60416K/5120K bytes of memory.

Processor board ID 08360522

R4700 CPU at 80Mhz, Implementation 33, Rev 1.0

MICA-6DM Firmware: CP ver 2730 - 5/23/2001, SP ver 2730 - 5/23/2001.

Channelized E1, Version 1.0.

Bridging software.

X.25 software, Version 3.0.0.

SuperLAT software (copyright 1990 by Meridian Technology Corp).

TN3270 Emulation software.

Primary Rate ISDN software, Version 1.1.

1 FastEthernet/IEEE 802.3 interface(s)

31 Serial network interface(s)

30 terminal line(s)

1 Channelized E1/PRI port(s)

DRAM configuration is 32 bits wide with parity disabled.

29K bytes of non-volatile configuration memory.

16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

1 ACCEPTED SOLUTION

Accepted Solutions

Re: Dial in problem

If thee is a possibility to make this work you should find it in this link:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1826/products_configuration_guide_chapter09186a00800d9bba.html#wp19432

I remember having used a set of terminal servers (2509, 2511) to transport async data over an IP network. A telnet session was automatically established on activation of the serial line (i.e. DTR goes up)

Perhaps you can accomplish something similar using the autocommand feature.

Regards,

Leo

2 REPLIES

Re: Dial in problem

If thee is a possibility to make this work you should find it in this link:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1826/products_configuration_guide_chapter09186a00800d9bba.html#wp19432

I remember having used a set of terminal servers (2509, 2511) to transport async data over an IP network. A telnet session was automatically established on activation of the serial line (i.e. DTR goes up)

Perhaps you can accomplish something similar using the autocommand feature.

Regards,

Leo

New Member

Re: Dial in problem

Thank you very much, autocommand works!

Regards,

Klaus

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