How to Route ISDN-Datacalls from BRI to PRI? (3845 / AS5350)

[sub205]

Hello,

i've got a (retro)lab and try to understand fundamentals, recreate configurations etc.

Basically it's a 3845 with several interface types (in this case relevant: VWIC-2MFT-E1 and VIC2-2BRI-NT/TE)

I connected a isdn device (fritzcard usb) to one of the BRI-ports in NT-mode.

I connected my as5350 to one of the PRI-ports.

Dialing via SIP (or the VIC3-4FXS) over the 3845 into the AS5350 with a modem works fine and the sessions are terminated.

But dialing via ISDN lets the 3845 answer the calls and try to terminate the ppp session directly.

How can i instruct the 3845 to route ALL calls to a defined number to the AS5350?

Or the other way around: What makes the 3845 accept datacalls instead of forwarding them to the dial-peer?

Kind regards

Stephan

[sub205]

When i make a PPP call from another E1 line into the 3845 it gets properly routed to the AS5350.

So it seems it has something to do with the config of the BRI ports.

interface BRI0/2/0
 no ip address
 isdn switch-type basic-net3
 isdn protocol-emulate network
 isdn layer1-emulate network
 isdn sending-complete
 isdn skipsend-idverify
 line-power
!
interface BRI0/2/1
 no ip address
 isdn switch-type basic-net3
 isdn protocol-emulate network
 isdn layer1-emulate network
 isdn sending-complete
 isdn skipsend-idverify
 line-power
!

voice-port 0/2/0
 no vad
 compand-type a-law
 cptone DE
!
voice-port 0/2/1
 no vad
 compand-type a-law
 cptone DE
!

I can't find any specific config that makes the BRI-ports answer datacalls. 

[sub205]

After defining a dial-peer for the bri-port, the calls get routed.

I also removed several residues from my original ppp-config (i used the 3845 as a ppp dialin router before i got the AS5350 - because i was unable to get digital modem (mica) cards for the 3845 somewhere for a fair price)

dial-peer voice 4000 pots
 description ISDN Port 0
 destination-pattern 4000
 no digit-strip
 port 0/2/0
!
dial-peer voice 4001 pots
 description ISDN Port 1
 destination-pattern 4001
 no digit-strip
 port 0/2/1
!
dial-peer voice 3000 pots
 description AS5350 Inbound Calls
 destination-pattern 3000
 no digit-strip
 port 0/1/1:15
!
dial-peer voice 3001 pots
 description AS5350 BBS
 destination-pattern 3001
 no digit-strip
 port 0/1/1:15
!