Because a SIP trunk is not a physical connection, there is no explicit limit on the number of calls that can be carried over a single trunk.
因为一个SIP中继不是物理连接，也没有就可以在一个单一的电话号码进行明确的主干限制。
Within a switching system, a connection or circuit between inlets and outlets of the same or different switching networks. An intraoffice trunk.
在交换系统中，同一或不同交换网络的引入线和引出线之间的连接部分或电路。又称局内中继线。
SIP Trunk is a logical connection between an IP PBX and a Service Provider's application servers that allows voice over IP traffic to be exchanged between the two.
一个SIP中继是一个IPPBX和服务提供商的应用服务器，使语音的逻辑联系IP流量将两者之间的交换。
Harvesters meet spring stationary car trunk and frame fixed connection, must use car dumper harvesters rollover unloading.
矿车碰头弹簧固定式矿车车箱与车架固定联接，须用翻车机将矿车翻转卸载。
Harvesters meet spring stationary car trunk and frame fixed connection, must use car dumper harvesters rollover unloading.
矿车碰头弹簧固定式矿车车箱与车架固定联接，须用翻车机将矿车翻转卸载。
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