Mobile electronic communications with grace period

A communications system comprising:

• at least one server;
• and
• a plurality of mobile communications devices, each of the plurality of mobile communications devices associated with an account maintained at the server, and the plurality of mobile communications devices configured for wireless communications with a mobile network and wireless local-area networks;
• the server configured to maintain, for each account, an indication of a balances and track a grace period using a grace-period data record while the balance is depleted, the grace period having a duration that begins from a time that the balance is depleted;
• the server further configured to, when the grace period is active:
• establish the voice call over an available wireless local-area network;
• during the voice call, determine a state of the grace period;
• if the grace period is determined to be active, allow the mobile communications device to maintain the voice call;
• and
• when the duration ends, expiring the grace period and ending the voice call.

A method of communication for a mobile communications device, the method comprising:

• receiving, at the mobile communications device, an indication of a balance from a server and an indication of a state of a grace period, the grace period having a duration that begins from a time that the balance is determined to be depleted;
• when the grace period is active, establishing a voice call over an available wireless local-area network;
• determining, at the mobile communications device, during the voice call, a state of a grace period;
• if the grace period is determined to be active, maintaining the voice call;
• and
• when the duration ends, expiring the grace period and ending the voice call.