Previously just a great deal for San Francisco customers, T-Mobile USA are extended their $50 unlimited voice plan. There are a few requirements on the deal, rewarding long term customers.

T-Mobile has extended a trial plan initially tested in San Francisco to the entire USA. The deal offers unlimited voice calls on a $50 plan. The trial has only been out for a short time although the uptake with customers has seen the Company push the plan out to their national base.

Customers who have held a T-Mobile contract for 22 months or more may sign up for the $50 per month plan that provides for unlimited nationwide calling. The plan is meant to reward what T-Mobile considers to be its most loyal customers. Just in case you are wondering, throughout your time with the carrier, you do need to have been in good standing financially.

[via PhoneScoop]