请教一下以下6个VoIP配置语句如何解释
R-1(config)#dial-peer voice 1 pots
R-1(config-dial-peer)#destination-pattern 1111
R-1(config-dial-peer)#port 1/1/0
R-1(config)#dial-peer voice 10 voip
R-1(config-dial-peer)#destination-pattern 2222
R-1(config-dial-peer)#session target ipv4:192.168.1.2
------解决方案--------------------------------------------------------
配置pots拨号对等体
R-1(config)#dial-peer voice 1 pots 配置1号端口
R-1(config-dial-peer)#destination-pattern 1111 定义电话号码
R-1(config-dial-peer)#port 1/1/0 应用在子接口
配置voip拨号对等体
R-1(config)#dial-peer voice 10 voip
R-1(config-dial-peer)#destination-pattern 2222 映射对端电话号码到本地
R-1(config-dial-peer)#session target ipv4:192.168.1.2 为对方IP地址