55 Sip trunks to round robin on 2 X PRI E1 Interfaces.

[TheProvider]

I am hoping some one can help with a little Advance setup please.
We have added another 15 25 channels of SIP into our company and have another PRI E1 card uplinked into our PaBX.
I need to ensure that my plans are right to ensure when 30 channels on card one are used it over flows into card 2.

What addition need to be added or is it automatic.


controller E1 0/1/0
pri-group timeslots 1-31
!
controller E1 0/1/1
pri-group timeslots 1-14

interface Serial0/1/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn overlap-receiving
isdn protocol-emulate network
isdn incoming-voice voice
no cdp enable

interface Serial0/1/1:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn overlap-receiving
isdn protocol-emulate network
isdn incoming-voice voice
no cdp enable


voice-port 0/1/1:15
cptone GB
timeouts interdigit 5

dial-peer voice 100 voip
translation-profile outgoing correct_outwards
huntstop
preference 2
max-conn 30
destination-pattern T
progress_ind setup enable 3
session protocol sipv2
session target sip-server
voice-class codec 711
dtmf-relay rtp-nte
!
dial-peer voice 1 pots
huntstop
preference 1
destination-pattern 44[0-9]
direct-inward-dial
port 0/1/1:15
forward-digits 6
no sip-register