| 摘要 |
<p>A call connection method of a portable terminal is provided to offer a convenient and differentiated service for processing rejection of a call connection request caused by deficiency of a resource by performing the call connection on the basis of numbers with priorities. A call connection method of a portable terminal comprises the following several steps. The portable terminal receives a call release regarding a call connection request from an MSC(Mobile Switching Center)(101-106). If the portable terminal receives the call release from the MSC, the portable terminal transmits a call connection request again to the MSC by using other number with a higher level priority(107). If the MSC receives the call connection request again on the basis of the number with the higher level priority from the portable terminal, the MSC allocation a resource of a resource pool, used for other purpose, to the portable terminal and connects the call to the portable terminal via the number with the higher level priority(108-114).</p> |
