a dial peer, also known as an addressable call endpoint, is a device that can originate or receive a call in a telephone network. in voice over ip (voip), addressable call endpoints can be categorized as either voice-network dial peers or pots (plain old telephone service) dial peers. voice-network dial peers include voip-capable computers, routers, and gateways within a network. pots dial peers include traditional phone sets, cell phones, and fax machines.

　　the term dial peer is sometimes used in reference to a program that matches a specific dialed sequence of digits to an addressable call endpoint. according to this definition, there is one dial peer for each call leg (connection between two addressable call endpoints). 93"hyq` A8K&t#|@ [ 本 资 料 来 源 于 贵 州 学 习 网 IT认证全国计算机等级考试 http://Www.gzU521.com ] 93"hyq` A8K&t#|@

　　dial peer hunting

　　dial peer hunting is a feature of voice over ip (voip) systems in which the device at the originating router attempts to find an alternative addressable call endpoint if it cannot establish a connection to the intended endpoint. for dial peer hunting to work, the originating router must be configured with a list (sequence) of dial peers, all of which can route a call to the same endpoint, but using different destination routers. if the originating router receives an invalid-number or user-busy code from the destination router, the originating router proceeds to the next dial peer in the sequence.

　　拨号点

　　拨号点也称可寻址的呼叫端点，是电话网络中产生或接收电话的设备。在ip电话（voip）中，可寻址呼叫端点可以分为两类: 语音网络或普通老式电话服务（pots）的拨号点。语音网络拨号点包括具有voip功能的计算机、网络中的路由器和网关。pots拨号点包括传统的电话机、手机和传真机。

　　拨号点这个术语有时也是指一个程序，其特定的拨号数字序列与一个可寻址呼叫端点相匹配。按此定义，每次呼叫连接（两个可寻址呼叫端点之间的连接）都有一个拨号点。

　　拨号点搜寻

　　拨号点搜寻是ip电话（voip）系统的一个特色，其中起始路由器处的设备在与想找的端点之间不能建立连接时，试图寻找一个可替代的可寻址呼叫端点。为使拨号点搜寻开始工作，起始路由器必须配备拨号点的列表（序列），能利用不同的目的地路由器将一个呼叫路由到同一端点。如果起始路由器接收到空号或目的地路由器的用户忙于编码，起始路由器就开始序列表中的下一个拨号点。