问题：
为了防止卡线遭投诉被运营商停，给公司带来损失，对一些特定号段特定区域要进行限制，不让客户呼出
打开VOS3000
落地网关——补充设置——落地被叫前缀——禁止
添加禁止号段
具体案例：
如填写如下号码段：
880130,880131,880132,880133,880145,880147,880149
,880153,880155,880156,880170,880171,880173,880175,
880176,880177,880180,880181,880185,880186,880189
,915010,9150130,9150131,9150132,9150133,9150145,
9150147,9150149,9150153,9150155,9150156,9150170,
9150171,9150173,9150175,9150176,9150177,9150180,
9150181,9150185,9150186,9150189,9150379,91508017,
91508020,91508024,91508026,91508028,91508030,91508032,
91508034,91508044,91508048,91508050,91508053,91508055,
91508057,91508059,91508061,91508063,91508067,91508069,
91508071,91508074,91508076,91508078,91508082,9150891,
9150893,9150895,9150897,9150908,9150990,9150991,9150995,
9150996,9150998
例如：9150379表示限制拨打洛阳电话，880186限制拨打联通186号段，9150189限制拨打电信189号段