第二种吧，或者打两个模块

合约期内销户，支付违约金呗。办理业务请去正规营业厅，有些非直营的营业厅会搞些小动作

以前复制过自己的 sim 卡，后开机的能收到短信，接到电话。两个 sim 都能打电话(不是同时)。另外以前的西门子手机，可以虚拟 sim 卡。

@jasontse 感谢，我试了下，确实能解析，但是江苏移动 ping 不通，江苏电信能 ping 通

traceroute to 223.5.5.5 (223.5.5.5), 64 hops max
1 23.92.24.2 0.775ms 0.456ms 0.468ms
2 65.49.10.217 12.100ms 0.298ms 0.199ms
3 184.105.222.14 3.520ms 1.729ms 0.631ms
4 66.220.23.190 3.743ms 4.034ms 3.899ms
5 202.97.50.57 1.390ms 4.009ms 3.955ms
6 202.97.58.245 167.321ms 167.329ms 167.279ms
7 * 202.97.91.245 182.444ms 182.406ms
8 202.97.35.205 182.945ms 183.582ms 183.499ms
9 119.147.222.22 171.186ms 171.210ms 170.927ms
10 119.147.220.234 190.631ms 190.663ms 189.666ms
11 14.215.137.30 177.052ms 177.831ms 177.501ms
12 42.120.239.246 190.864ms 190.095ms 190.179ms
13 42.120.239.246 191.041ms 190.454ms 191.308ms
14 42.120.253.2 181.735ms 181.898ms 182.085ms
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
^C

traceroute to 223.5.5.5 (223.5.5.5), 64 hops max
1 112.25.139.65 2.990ms 2.672ms 1.980ms
2 112.21.184.73 2.929ms 2.688ms 3.407ms
3 * 221.183.27.53 9.552ms 9.212ms
4 221.183.10.65 13.005ms 13.754ms 13.259ms
5 221.183.12.142 11.152ms 11.255ms 11.287ms
6 211.138.128.134 14.490ms 14.594ms 14.385ms
7 42.120.244.174 11.979ms 11.775ms 11.646ms
8 42.120.244.242 27.293ms 39.457ms 40.187ms
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * ^C

@hiboshi 用国外的 vps 主机测试过，一样不通