Caller ID on ISDN

[Smithser]

Hi,

I have a central router that multiple customers dial into for access to my network, I have a central PRI and I have legacy DDR with dialer maps on a dialer interface for each customer, however I am setting up a new customer and they are using caller id (I currently do not) and when i try to connect to them my call is being rejected, is there any config that I'm meant to apply on my end for my call to be accepted?

My config is :

interface Serial1/0:15
no ip address
encapsulation ppp
dialer rotary-group 1
isdn switch-type primary-net5
no cdp enable
!
interface Dialer1
ip address 1.1.1.1 255.255.255.0
encapsulation ppp
no keepalive
dialer in-band
dialer idle-timeout 60
dialer fast-idle 15
dialer map ip 1.1.1.2 name customer1 4110908
dialer map ip 1.1.1.6 name customer2 016056187
dialer map ip 1.1.1.8 name customer3 00441344884418
dialer map ip 1.1.1.10 name customer4 4072958
dialer map ip 1.1.1.12 name customer5 6387900
dialer-group 1
no cdp enable
ppp authentication chap
ppp chap hostname xxx
ppp chap password xxx
ppp multilink

Thanks in advance