[rt-users] give view access with login/password

[Stephane Robert - PacWan]

Hello,
I'm quite new to customizing RT even if I use it for a while now, as 
a technical support ticketing system.
I'd like to get some common advices to help me find how to do what I'd like.
Here's the situation : there are 3 people opening ticket when they 
received some phone calls. In the ticket there is a custom filed 
corresponding to a unique customer number.
What I'd like to do would be to give web access to a customer toi our 
ticketing system, so that with a unique login/password, he would be 
able to see (only see, and maybe comment) all ticket that have been 
opened for him (and not opened by him as customers don't open ticket, 
only hotliners open ticket for them).
Is there an easy way to do this with out-of-the-box version of RT, or 
do I need to develop some web pages with clever PHP/SQL requests??
Couldn't I create a user for the customer, make this user CCd (for 
example) of a ticket opened for him, and  then the customer, when 
he'd log on RT's start page could search/see all ticket opened for him?
Thanks in advance for any advice!