| 摘要 |
A method apparatus and computer readable medium for facilitating uninterrupted transmission of internet protocol (IP) transmissions containing real time transport protocol (RTP) data during endpoint changes. When an IP transmission is received at the caller RTP port or the callee RTP port, a call record having a caller RTP port identifier or a callee RTP port identifier matching a destination port identifier in the IP transmission is located and when the destination port identifier in the IP transmission matches the caller RTP port identifier of the record, a source IP address identifier and source port identifier from the IP transmission are set as the caller IP address identifier and caller port identifier respectively of the record when the caller IP address identifier and caller port identifier do not match the source IP address identifier and source port identifier respectively and a received SSRC identifier in the IP transmission matches the caller SSRC identifier. When the destination port identifier in the IP transmission matches the callee RTP port identifier of the record, the source IP address identifier and source port identifier from the IP transmission are set as the callee IP address identifier and callee port identifier respectively of the record when the callee IP address identifier and callee port identifier do not match the source IP address identifier and source port identifier respectively and the received SSRC identifier in the IP transmission matches the callee SSRC identifier. |
