Comparing with other standards such as SIP, MGCP, H.248/MEGACO and soft switch, the most advantage of H.323 is its maturity, and highest market share.是什么意思_Comparing with other standards such as SIP, MGCP, H.248/MEGACO and soft switch, the most advantage of H.323 is its maturity, and highest market share.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句