# 常见问题导航
#### 产品咨询类
[什么是语音通话？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00018.html)
[语音通话可免费体验吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_6.html)
[语音通话是否支持录音功能？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_8.html)
[语音通话有通话时间限制吗？怎么设置自动挂机时间？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_54.html)
[语音通话封禁规则](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_2.html)
[个体工商户和政府类项目能使用语音通话服务吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_29.html)
[语音通话能实现多路通话同时进行吗？并发限制是多少？如何调整？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_35.html)
[语音通话服务可以给物联网卡打电话吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_42.html)
[IAM用户能使用语音通话服务吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_50.html)
[语音通话服务，给子账号添加IAM权限为何不生效？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_51.html)
[语音通话是否有每天同一被叫呼叫频次限制、呼叫时间段限制、呼叫地区限制等限制？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_64.html)
[是否支持国际语音通话服务？能否绑定或拨打中国香港、中国澳门、中国台湾及海外号码？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_65.html)
[语音通话业务是否存在呼叫频次限制？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_71.html)
[华为云智能话务机器人与 VoiceCall有什么不同？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_81.html)
[华为云语音通话能否使用储值卡支付？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_82.html)
#### 计费相关
[语音通话（使用固话）如何计费？价格多少？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00027.html)
[如何查询消费记录？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_21.html)
[语音通话服务有套餐吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_66.html)
#### 服务开通相关
[如何订购并开通语音通话服务？需要审核多久？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_10.html)
[为什么语音通话开通服务时"立即申请"点击不了？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_26.html)
[开通服务时，遇到报错该如何处理？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_55.html)
[语音通话应用是否能修改、删除？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_16.html)
[如果新建一个应用，需要重新申请该应用的固话号码吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_60.html)
[语音通话最多可添加几个应用？需要添加更多的应用怎么办？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_17.html)
[语音通话号码资源下发需要多久？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_7.html)
[华为云语音通话服务中，导致企业审核审核不通过的原因有哪些？如何处理？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_22.html)
[语音通话的企业管理中，添加了企业信息，多久能审核通过？如何查询审核结果？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_23.html)
[语音通话添加企业时的"预估日通话次数"有最低限制吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_24.html)
[添加企业后，是否支持修改或删除企业信息？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_57.html)
[语音通话服务中，创建了多个应用，可以每个应用对应不同的开发者账号和密码吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_28.html)
[添加号码时，遇到报错该如何处理？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_58.html)
[已通过华为云企业实名认证的用户还需要在控制台添加企业信息吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_39.html)
[为什么添加企业时经办人手持身份证照片不规范？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_48.html)
[如果修改华为云账号的实名认证信息，是否影响语音通话的业务？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_63.html)
[不再使用语音通话业务了，是否需要退订？如何退订？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_72.html)
#### 号码相关
[号码格式是什么？怎么填写？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00031.html)
[语音通话是否支持固话号码及手机号码？如何申请？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00032.html)
[app_key、开发者账号、固话号码和CallEnabler业务号码（bindNbr）有什么特定的数量关系吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00004.html)
[语音通话中来电显示什么号码？是否支持自定义来电显示号码？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00019.html)
[语音通话的固话号码是否会根据接听号码所属地区而变动？是否可修改？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_15.html)
[语音通话怎么进行号码标记？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_20.html)
[语音通话的固话号码（displayNbr、displayCalleeNbr）是什么？如何获取？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_25.html)
[添加企业中的"是否需要申请固话号码"要选择"是"还是"否"？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_31.html)
[语音通话如何查看已申请的号码？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_33.html)
[为什么终端上实际显示的号码和调用接口时携带的固话号码不一致？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_37.html)
[语音通话一个华为云账号下的固话号码可否转给其它企业的华为云账号使用？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_38.html)
[固话号码和绑定号码的归属地必须与企业归属地相同吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_41.html)
[语音通话是否支持95号码？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_43.html)
[语音通话可以申请多个号码吗？都可以申请哪些城市的号码？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_44.html)
[语音通话如何退订号码？号码退订后还会扣月租吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_46.html)
[语音通话能否提供号码证明？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_47.html)
[语音通话是否有区域限制？哪些地区不能使用语音通话？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_3.html)
[号码更换地区需要重新订购吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_75.html)
#### 放音文件及语音模板配置
[放音文件和语音模板必须要审核通过后才可使用吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_53.html)
[语音通话有哪些可自定义的呼叫提示音，如何上传审核？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00030.html)
[语音通话的放音文件是固定的还是要用户上传呢？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_27.html)
[语音通知中使用放音文件和语音模板有什么区别？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_30.html)
[放音文件的音频格式要求是什么？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00017.html)
[一个语音通知可以播放几个语音文件？格式是什么？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_4.html)
[想要指定自己的语音通知模板，需要遵循哪些配置规则？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00020.html)
[语音模板内容支持小数吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_12.html)
[如何查看语音模板内容？是否支持下载或迁移？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_40.html)
[语音模板中的变量是如何填充的？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_36.html)
[语音通知可以设置播放多遍吗，如何设置？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_80.html)
#### API\&代码样例
[语音回呼有最大通话时长限制吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_14.html)
[代码样例（JAVA）有什么使用注意事项？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00021.html)
[语音通话如何获取APP接入地址、APP_Key和APP_Secret？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_34.html)
[如何实现同时给多个用户发送语音通知？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_49.html)
[语音回呼场景API，可以只给主叫设置录音提示音吗？主被叫可以都设置不提示吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_70.html)
#### 录音\&收号\&TTS相关问题
[录音文件可以保存多久时间？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00016.html)
[如何下载录音文件？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00006.html)
[什么是收号？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00022.html)
[如何实现收号功能？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00023.html)
[如何查询放音收号结果？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00024.html)
[语音通知中TTS的声音是什么类型的？是否支持自定义？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00028.html)
[语音通知中TTS如何播报数字和英文符号？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00029.html)
[播放完语音通知后是自动挂断电话吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_32.html)
#### 呼叫状态和话单通知
[如何配置和接收呼叫状态和话单通知？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00026.html)
[呼叫状态和话单通知什么时候推送？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00009.html)
[呼叫状态和话单通知多个用户如何推送？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00010.html)
[接收呼叫状态和话单通知后需要返回响应消息吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00011.html)
[接收呼叫状态和话单通知，参数区分大小写吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00012.html)
[语音通话的呼叫状态通知和话单通知支持重推吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_11.html)
[语音通话的通话记录如何获取？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00037.html)
[推送的话单中时间未按正常的时区显示，服务器时间和北京时间相差8小时？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_59.html)
[如果不想接收呼叫状态和话单通知怎么办？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_62.html)
[如何查看通话详情？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_69.html)
#### 故障排除
[如何判断华为云服务API接口是否正常？如果不正常如何处理？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00008.html)
[调用接口时请求不通，没有任何返回信息，怎么处理？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00002.html)
[返回"1010023 Display number invalid."错误码如何处理？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00013.html)
[在什么场景下会返回"1020165 The appkey call port of using exceeds the limited."错误码？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00005.html)
[请求时遇到1010002非法请求错误如何处理？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00105.html)
[在进行语音通话时，被叫号码无法呼起，导致问题的可能原因有哪些？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00007.html)
[为什么没有收到呼叫状态通知和话单通知？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00003.html)
[为什么通话时间小于3秒的呼叫无法下载录音文件?](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_00036.html)
[语音通话控制台访问异常如何处理？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_19.html)
[API调用失败如何处理？失败后可以一直不停地调用吗？](https://support.huaweicloud.com/VoiceCall_faq/VoiceCall_faq_0000_67.html)