Method to determine media paths in a SIP network using information from endpoints and intermediate devices
    2.
    发明授权
    Method to determine media paths in a SIP network using information from endpoints and intermediate devices 有权
    使用来自端点和中间设备的信息来确定SIP网络中的媒体路径的方法

    公开(公告)号:US08971193B2

    公开(公告)日:2015-03-03

    申请号:US13317673

    申请日:2011-10-24

    摘要: An internet telephony call analyzer receives call information from endpoint and intermediate network devices, corrects timestamp errors in the records, stores the records, and identifies records associated with a single call session between two endpoint devices in the network. The timestamp errors may be corrected by applying a time differential correction to a call start timestamp and call stop timestamp of the record if the timestamp in the record differs from a system timestamp when the record was received by the call analyzer. Call information records associated with the same call session may be matched by identifying records with the same SIP call ID, the same SSRC ID and call start timestamps within a predetermined time interval of each other.

    摘要翻译: 互联网电话呼叫分析器从端点和中间网络设备接收呼叫信息,校正记录中的时间戳错误,存储记录,以及识别与网络中的两个端点设备之间的单个呼叫会话相关联的记录。 如果记录中的时间戳与呼叫分析器接收到记录时的系统时间戳不同,则可以通过对记录的呼叫开始时间戳和呼叫停止时间戳应用时间差分校正来校正时间戳错误。 可以通过在彼此的预定时间间隔内识别具有相同SIP呼叫ID,相同SSRC ID和呼叫开始时间戳的记录来匹配与相同呼叫会话相关联的呼叫信息记录。