Boost has begun trials of new unlimited calling plans in select Texas and California markets. Instead of using its customized iDEN handsets, the service is only available over Sprint’s CDMA network using a Motorola C290. Because it is using an entry level CDMA phone, subscribers won’t be able to use walkie talkie or other Boost features. The service runs $45 to $50 per month for unlimited calls, which is similar to MetroPCS and Cricket’s prices. These other unlimited calling carriers already offer service in areas where Boost is trialing its plans.