I want to get 1mb CIR by worldcall. Is it good?

I am going to install 1mb CIR package in my call center. They are charging Rs 12k / month, LinkDotNet is charging Rs 18k / month and I think Multinet is charging Rs 15k / month for 1mb package.

Can anyone suggest me which one is good? I am trying to contact Multinet but they are just delaying the process since 1 week and havn't visited my office yet and worldcall CSR said that I will get worldcall 1mb CIR in 2 days. Should I go for that? I am in bit hurry

Worldcall is the best option.