Patent ID: 11917096
Assignee: nan
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method comprising:
receiving, by at least one network node element, from a first user device, a call request for a call to a telephone number that is associated with a second user device;
determining, by the at least one network node element, that the first user device is associated with a user account having a credit value that is insufficient to complete the call between the first user device and the second user device;
setting, by the at least one network node element, a call duration timer to expire upon answering the call;
instructing, by the at least one network node element, after the setting of the call duration timer, to progress the call toward the second user device, thereby permitting the call to mature to a ringing state; and
instructing, by the at least one network node element, to release the call when the call duration timer expires upon answering the call.