关于AC中紧急拨号的问题

24598fang

Hi 大佬门，

这几天遇到了一个问题，在有接入控制的小区中，紧急拨号是怎么处理的？

在协议上查到了下面一段资料：

5.3.1.3        Emergency Call
A restriction on emergency calls, if needed, shall be indicated in the "Access class barred list" IE [4]. If access class 10 is indicated as barred in a cell, UEs with access class 0 to 9 or without an IMSI are not allowed to initiate emergency calls in this cell. For UEs with access classes 11 to 15, emergency calls are not allowed if both access class 10 and the relevant access class (11 to 15) are barred. Otherwise, emergency calls are allowed for those UEs.
Full details of operation under "Access class barred list" are described in [9].


说的不是很清晰，我的理解是：

1. 等级0-9，只要小区设置了接入限制，这个限制对普通电话和紧急号码都是起作用的，就是都不能拨号。

2. 如果Access class 10设置了限制，此时0-9中的所有紧急号码都是不能拨号的。

请大家赐教！