When traditional call center transfers to IP call center, it always makes use of H.
传统呼叫中心升级到IP网络呼叫中心，往往采用H。
When traditional call center transfers to IP call center, it always makes use of H. 323 protocol.
传统呼叫中心升级到IP网络呼叫中心，往往采用H。323协议。
New China Life Insurance Call Center using the most advanced IP technology in the industry, is the first IP-based technology centralized call center in the industry.
电话中心采用业内最先进的IP技术，是业内第一家基于IP技术的集中式呼叫中心。
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