ccna and the call center experience..

hi friends my name is prakash i am working in call center india.. i am doing ccna.. i am planning to write exam on january

i am workign for British Telecom UK based ISP support

supporting SOHO router

and also i worked for VONAGE thats US based company proving voice support thru data signals thats voip product

i like to know how that experience will help me to get the job..

guys plese give me some suggestion