For the requirements of telephone dispatch and online conference scheduling of expressway emergency response command system, a SIP protocol scheduling telephone system was put forward.
针对高速公路应急指挥系统所应有的电话调度与在线会商需求，提出了采用SIP协议的调度电话系统。
For the requirements of telephone dispatch and online conference scheduling of expressway emergency response command system, a SIP protocol scheduling telephone system was put forward.
针对高速公路应急指挥系统所应有的电话调度与在线会商需求，提出了采用SIP协议的调度电话系统。
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