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Beginner

Setting up a modem lab

All-

I intend to setup a simple modem lab as follows:

Modem lab.PNG

To simulate the POTS phone lines, instead of using POTS line simulator like virtual console, can I use one 2811 router with VIC2-2FXS module, any configuration suggestions will be appreciated.  Thanks for your input.

1 ACCEPTED SOLUTION

Accepted Solutions
Highlighted
Advocate

Alan,

Happy New Year.
All the best for 2013.

Yes, this should be OK.
I take it that your router has a DSP like
a PVDM2-8 to cater for the FXS ports.

2 FXS ports and dial peers.

!
voice-port 0/0/0
desc *** LEFT HAND MODEM ***
cptone
!
!
voice-port 0/0/1
desc *** RIGHT HAND MODEM ***
cptone
!
!
dial-peer voice 100 pots
desc *** TO LEFT HAND MODEM ***
destination-pattern 7321111111
port 0/0/0
!
!
!
dial-peer voice 101 pots
desc *** TO RIGHT HAND MODEM ***
destination-pattern 2122222222
port 0/0/1
!

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.

View solution in original post

4 REPLIES 4
Highlighted
Advocate

Alan,

Happy New Year.
All the best for 2013.

Yes, this should be OK.
I take it that your router has a DSP like
a PVDM2-8 to cater for the FXS ports.

2 FXS ports and dial peers.

!
voice-port 0/0/0
desc *** LEFT HAND MODEM ***
cptone
!
!
voice-port 0/0/1
desc *** RIGHT HAND MODEM ***
cptone
!
!
dial-peer voice 100 pots
desc *** TO LEFT HAND MODEM ***
destination-pattern 7321111111
port 0/0/0
!
!
!
dial-peer voice 101 pots
desc *** TO RIGHT HAND MODEM ***
destination-pattern 2122222222
port 0/0/1
!

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.

View solution in original post

Highlighted

Thanks a million Alex! I will test this out, will let you know if run into issues.

Highlighted
Beginner

Hi Alex

Thanks, the configuration has been tested good without issues; was able to dial out local to remote modem based on the dial-peer configuration.

Here are the configuration and hardware used:

Cisco 2811 - 512/128

IOS image: c2800nm-adventerprisek9_ivs-mz.151-4.M5.bin

PVDM2-32 (should be in PVDM0 slot) 

VIC2-2FXS on HWIC0

The configuration was pefect.

pstn#show run
Building configuration...


Current configuration : 1313 bytes
!
! Last configuration change at 22:23:24 UTC Wed Jan 9 2013
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname pstn
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!
!
dot11 syslog
ip source-route
!
!
ip cef
!        
!
!
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
!
voice-card 0
!
crypto pki token default removal timeout 0
!
!
!
!

!
redundancy
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!        
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
!
!
!
control-plane
!
!
voice-port 0/0/0
description *** LEFT HAND MODEM ***
!
voice-port 0/0/1
description *** RIGHT HAND MODEM ***
!
voice-port 0/1/0
!
voice-port 0/1/1
!
!
!
mgcp profile default
!
!
dial-peer voice 100 pots
description *** TO LEFT HAND MODEM ***
destination-pattern 7321111111
port 0/0/0
!
dial-peer voice 101 pots
description *** TO RIGHT HAND MODEM ***
destination-pattern 2122222222
port 0/0/1
!
!
!
!
gatekeeper
shutdown
!
!
!        
line con 0
line aux 0
line vty 0 4
login
transport input all
!
scheduler allocate 20000 1000

Highlighted

Alan,

Great to hear it worked. 

Can you mark this case as answered

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.
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