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phone-call-assistant

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电话自动接听、语音对话与记录技能。当 Agent 通过 VoIP/CallKit 或 App 内语音渠道接听来电时启用,自动进行对话并结构化记录全部内容。

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电话通话助手(Phone Call Assistant)

当用户或系统通过 VoIP / CallKit 或 App 内语音 渠道向 Agent 发起来电时,Agent 应自动接听、进行实时对话,并将全部对话内容结构化记录。

何时启用

  • 来电渠道为 phone_voip(VoIP/CallKit)或 in_app_voice(App 内语音会话)
  • 用户询问「帮我接电话」「自动应答来电」「电话对话记录」等场景
  • 需要对已记录的通话内容进行总结、提取关键信息、生成会议纪要

接听与对话流程

  1. 来电检测:VoIP 推送 → CallKit 报告来电 → 系统展示原生来电 UI
  2. 自动接听:收到 CXAnswerCallAction 后立即接通(autoAnswer 模式)
  3. 实时转写:启动 SpeechPipeline(iOS SFSpeechRecognizer),将来电者语音实时转为文字
  4. Agent 应答:转写文本发送到 OmniNova 网关 /api/inbound,获取 Agent 回复
  5. 语音播报:Agent 回复通过 TTS(AVSpeechSynthesizer)播放给来电者
  6. 循环对话:重复 3→4→5 直至通话结束
  7. 会话归档:通话结束后将完整对话 JSON 落盘并同步到网关

对话记录格式

遵循 conversation_log_schema.json(本目录)。每通电话生成一个 JSON 文件:

{
  "schema_version": "1.0",
  "session_id": "uuid",
  "channel": "voip_callkit",
  "started_at_utc": "ISO8601",
  "ended_at_utc": "ISO8601",
  "locale": "zh-CN",
  "turns": [
    { "t": "ISO8601", "role": "caller", "text": "你好", "confidence": 0.95 },
    { "t": "ISO8601", "role": "agent", "text": "您好,我是 OmniNova 智能助手,请问有什么可以帮您?", "confidence": 1.0 }
  ],
  "metadata": { "app": "OmniNovaPhoneAgent", "source": "omninova-ios" }
}

Agent 应答准则

  1. 开场白:接听后先自报身份——「您好,我是 [Agent 名称],请问有什么可以帮您?」
  2. 语气:专业、友好、简洁;中文为主,必要时切换英文
  3. 信息采集:主动确认关键信息(姓名、事由、联系方式),不遗漏
  4. 超出能力范围:诚实说明「这个问题我需要转给人工处理」,并记录到 metadata
  5. 隐私:不主动索取身份证号、银行卡号等敏感信息;若来电者主动提供,记录中标注 [REDACTED]
  6. 通话时长:单次应答不宜超过 3 分钟,超时主动确认是否继续
  7. 结束:通话结束前复述关键信息并确认

文件引用(本仓库)

  • 记录 Schema:skills/phone-call-assistant/conversation_log_schema.json
  • 接听指南:skills/phone-call-assistant/call_handling_guide.md
  • 骚扰识别规则:skills/phone-call-assistant/spam_detection_rules.json
  • 关键信息 Schema:skills/phone-call-assistant/key_info_extraction_schema.json
  • iOS 客户端:apps/omninova-ios/OmniNovaPhoneAgent/
  • Android 客户端:apps/omninova-android/app/src/main/java/com/omninova/phoneagent/

平台限制(重要)

  • iOS
    • 无法通过公开 API 自动接听运营商蜂窝电话
    • 「自动接听」仅限 VoIP + CallKit 来电(需 Apple 开发者账号 + VoIP 证书)
    • 骚扰识别只能走 Call Directory Extension(静态名单,不可动态拒接)
  • Android
    • API 24+ 支持 CallScreeningService,可在振铃前决定 allow / silence / reject
    • API 26+ 支持 ANSWER_PHONE_CALLS,作为默认拨号器时可 Call#answer() 自动接听
    • 需要用户手动将 App 设为「默认电话/拨号」应用
  • App 内模拟通话 无上述限制,可用于测试与演示

Agent 可调用的工具(Gateway 侧)

技能导入 Agent 后,可通过网关工具链调用以下能力:

工具名说明
phone_call_assistant.list_sessions列出最近通话会话
phone_call_assistant.get_transcript获取指定 session 完整转写
phone_call_assistant.extract_key_info对会话执行关键信息抽取(遵循 key_info_extraction_schema.json)
phone_call_assistant.update_spam_rules向移动客户端推送最新骚扰规则