| 摘要 |
<p>The present invention discloses a method for confirming version information, wherein the method includes the following steps: sending the first dialogue request to an equipment and receiving an error code information returned by the equipment for the first dialogue request; sending to the equipment one or multiple dialogue requests according to the error code information, and determining the version information of the equipment according to one or multiple pieces of information returned by the equipment for said one or multiple dialogue requests. At the same time, the present invention also discloses a system and device for confirming version information. By confirming the version information of the equipment which does not support version negotiation, the problem of interaction and compatibility is solved between the equipments which do not support version negotiation.</p> |
