PBX is a common Telephone Exchange system that is widely adopted by the group customers, for example, enterprise, schools and hotels etc.
用户交换机(PBX)是目前机关、企业、学校及酒店等集团客户普遍采用的电话设备。
PBX is a common Telephone Exchange system that is widely adopted by the group customers, for example, enterprise, schools and hotels etc.
用户交换机(PBX)是目前机关、企业、学校及酒店等集团客户普遍采用的电话设备。
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