Configuration Fractional T1 PRI

Below is a configuration for a T1 PRI that has both voice and data running across the circuit. This was tested in a lab environment.

!Global configuration

isdn switch-type primary-ni
!This is the primary configuration for switch type for United States



card type t1 0 0 
! This configuration sets the card type of the installed called. "0' and "0"  OR "zero" and "zero" represent the card information of the slot and sub slot. You can get this information by doing a show inventory or show diag.


show inv
NAME: "CISCO2901/K9 chassis", DESCR: "CISCO2901/K9 chassis"
PID: CISCO2901/K9      , VID: V06 , SN:
NAME: "VWIC3-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 0", DESCR: "VWIC3-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"
PID: VWIC3-2MFT-T1/E1  , VID: V01 , SN: 


controller T1 0/0/1
cablelength short 110

channel-group 11 timeslots 11-20
!Sets the data group to operate on channels 11 through 20. This sets the data circuit to function and brings up the serial interface.

pri-group timeslots 1-10,24
!Sets the pri or voice circuit to operate on bearer channels 1 through 10 and D channel 24. Remember that the T1 has 24 total channels and 23 are B channels and 1 is a D channel for signaling. 

interface Serial0/0/1:11
ip address 2.2.2.2 255.255.255.0
!This is the data circuit

interface Serial0/0/1:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
no cdp enable
!This is the voice signaling.

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