Which IP telephony deployment model uses an H.225 Gatekeeper-Controlled trunk for call admission control within existing H.323 environments?（）
- A、single site with centralized call processing
- B、single site with distributed call processing
- C、multisite with centralized call processing
- D、multisite with distributed call processing
正确答案:D
答案解析:有
微信扫一扫手机做题