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problems configuring an E1 PRI, I can't get no more than 15 connections RDIS/modem in 3640

I have a 3640 whith a network module 1FE-2CE1-B/U and one NM-12DM, for analog connections. In this moment the problem is that only 15 connections works ! when I try a 16 connection my modem doesn't connect the signal is ocupied !

my ios version is:

12.0(5)T1

here is an extract of my configuration

controller E1 1/1

pri-group timeslots 1-31

!

interface Serial1/1:15

no ip address

no ip directed-broadcast

encapsulation ppp

dialer rotary-group 1

isdn switch-type primary-net5

isdn incoming-voice modem

!

interface Group-Async1

ip unnumbered FastEthernet1/0

no ip directed-broadcast

encapsulation ppp

ip tcp header-compression passive

async mode interactive

peer default ip address pool setup_pool

no cdp enable

ppp authentication pap

group-range 65 76

!

interface Dialer1

ip unnumbered FastEthernet1/0

no ip directed-broadcast

encapsulation ppp

dialer in-band

dialer-group 1

peer default ip address pool setup_pool

ppp authentication pap

!

line 65 76

autoselect during-login

autoselect ppp

modem Dialin

modem autoconfigure type mica-noKflex

stopbits 1

flowcontrol hardware

!

maybe someone can help-me

1 REPLY
Anonymous
N/A

Re: problems configuring an E1 PRI, I can't get no more than 15

Not sure what the problem is exactly;

you should be able to get a total of

12 async users and 18 sync users connected

at the same time. If you have a 13th

async user trying to connect, it won't

work since you don't have an available

modem.

If it looks like you have async users

that are connecting and then disconnecting,

but you don't see the line/modem being

cleared, then you first may want to try

upgrading your code (at least 12.0(7)T,

but latest 12.1 would be better).

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