We have been saying for sometime that telecom operators urgently needed to think beyond their core voice business. Mobile, beyond voice, is what we wrote about incessantly in the past two years. Here’s more reason: Google entered a new business beyond Internet search on Wednesday with a service within Gmail to make phone calls over the Web to landlines or cellphones. The service will thrust Google into direct competition with Skype, the Internet telephone company, and with telecommunications providers. It could also make Google a more ubiquitous part of people’s social interactions by uniting the service for phone calls with e-mail, text messages and video chats.