| 摘要 |
Call messaging techniques are disclosed that allow a called party and a calling party to communicate without interfering with an on-going call in which the called party is participating, and enable the called party to communicate with the calling party even after the call has left the called party's endpoint. For example, a call messaging methodology includes the following steps. Information is maintained regarding an endpoint location of a call within a call switching system handling the call, wherein the call is placed by a calling party to a called party, but wherein the called party is not answering the call. In accordance with the methodology, a message channel is provided between the called party and the calling party, such that the called party and the calling party are able to communicate without having a call connection established between them. Further, a call connection is established between the calling party and the called party when the called party becomes available to answer the call, even when the call has moved to an endpoint in the call switching system other than an endpoint of the called party.
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