Greetings !
We are a team of Engineers with 10+ year of experience. We have good working experience on Asterisk based solution. Worked for a company which developed call center suit over Asterisk. Having good hands on C, Perl and PHP.
We have developed a similar project to livecalls.hk. The whole telecom logic and CRM was developed by us. In you scenario only Test pannel is required. Request you to share the details of telecom service used at the backend. Let us know if anything else also need to be taken care of.
I am available on skype and chat. If interested feel free to contact.
Best Regards
skype: efreelance.p