Method of determining call duration of callback service
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZTE CORP
- Publication Date
- 2010-02-10
Smart Images
Figure 1
Abstract
Description
technical field
[0001] The invention relates to the field of call-back services, in particular to a method for determining the call duration of the call-back service. Background technique
[0002] With the development of the economy, people go abroad for travel or business activities more and more frequently. Due to the involvement of different countries, the international roaming communication fee will gradually increase. Under this development trend, the callback service proposes a technology to reduce the user's international roaming fee The solution, the so-called "call back", is to take advantage of the market opportunities in the international long-distance call charges in various countries, and the users in the high-toll countries and regions will convey the call request to the low-toll area, and then charge according to the lower local rate.
[0003] If user A sends a call-back request to the service control point (SCP) and requests to talk to user B, the processing ...