呼叫中心中间件(mod_cti基于FreeSWITCH)-http bridge
http bridge 的原理是cti模块实现了一个cti_bridge的FreeSWITCH APP,可以在呼出之前调用HTTP接口获取呼出参数，可用于实现小号业务，隐私号业务等外呼之前动态绑定主叫和被叫号码，也可用于呼入业务由HTTP接口控制呼入转接规则。
配置
- 第一个参数 请求的URL,URL和参数可自定义
- 第二个参数 connect_timeout 连接超时 单位毫秒，默认3000
- 第三个参数 response_timeout 等待http接口响应的超时 单位毫秒 默认 3000
- 第四个参数 notify_type 0：不要呼叫进度通知 1：需要呼叫进度通知，默认1
接口说明
接收到一个呼入后，cti_bridge会把呼叫信息送给接口，接口返回转接信息。以下是返回信息说明
通用用参数说明
variables 可用于设置通道变量，比如主叫号码（origination_caller_id_number），编码（absolute_codec_string）等
number 转接号码（被叫号码）
通过网关呼出 gateway网关名，number被叫号码
{"variables": {"origination_caller_id_number": "123","absolute_codec_string": "PCMA,PCMU"},"dial": {"type": "gateway","number": "123456","gateway": "gw"}
}
通过注册分机呼出，一般用于注册方式对接到fs,user注册的分机号
{"dial": {"type": "user","number": "123456","user": "1000"}
}
通过IP直接呼出，ip中继|VOS|网关的IP:PORT
{"dial": {"type": "ip","number": "123456","ip": "网关IP"，"sofia": "external"}
}
通过自定义拨号串呼出，
{"dial": {"type": "dialstring","dialstring": "sofia/external/158@ip:port"}
}
顺序转接给多个号码，第一个号码呼叫失败，继续转接给第二个号码
{"dial": {"type": "dialstring","dialstring": "{ignore_early_media=true}sofia/gateway/网关1/号码1,sofia/gateway/网关2/号码2"}
}
不转接，直接挂断
{"dial": {"type": "hangup","cause": 16,"sipcode": 500}
}cause和sipcode只需要配置一个，sipcode就是SIP代码·cause 取值说明：typedef enum {SWITCH_CAUSE_NONE = 0,SWITCH_CAUSE_UNALLOCATED_NUMBER = 1,SWITCH_CAUSE_NO_ROUTE_TRANSIT_NET = 2,SWITCH_CAUSE_NO_ROUTE_DESTINATION = 3,SWITCH_CAUSE_CHANNEL_UNACCEPTABLE = 6,SWITCH_CAUSE_CALL_AWARDED_DELIVERED = 7,SWITCH_CAUSE_NORMAL_CLEARING = 16,SWITCH_CAUSE_USER_BUSY = 17,SWITCH_CAUSE_NO_USER_RESPONSE = 18,SWITCH_CAUSE_NO_ANSWER = 19,SWITCH_CAUSE_SUBSCRIBER_ABSENT = 20,SWITCH_CAUSE_CALL_REJECTED = 21,SWITCH_CAUSE_NUMBER_CHANGED = 22,SWITCH_CAUSE_REDIRECTION_TO_NEW_DESTINATION = 23,SWITCH_CAUSE_EXCHANGE_ROUTING_ERROR = 25,SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER = 27,SWITCH_CAUSE_INVALID_NUMBER_FORMAT = 28,SWITCH_CAUSE_FACILITY_REJECTED = 29,SWITCH_CAUSE_RESPONSE_TO_STATUS_ENQUIRY = 30,SWITCH_CAUSE_NORMAL_UNSPECIFIED = 31,SWITCH_CAUSE_NORMAL_CIRCUIT_CONGESTION = 34,SWITCH_CAUSE_NETWORK_OUT_OF_ORDER = 38,SWITCH_CAUSE_NORMAL_TEMPORARY_FAILURE = 41,SWITCH_CAUSE_SWITCH_CONGESTION = 42,SWITCH_CAUSE_ACCESS_INFO_DISCARDED = 43,SWITCH_CAUSE_REQUESTED_CHAN_UNAVAIL = 44,SWITCH_CAUSE_PRE_EMPTED = 45,SWITCH_CAUSE_FACILITY_NOT_SUBSCRIBED = 50,SWITCH_CAUSE_OUTGOING_CALL_BARRED = 52,SWITCH_CAUSE_INCOMING_CALL_BARRED = 54,SWITCH_CAUSE_BEARERCAPABILITY_NOTAUTH = 57,SWITCH_CAUSE_BEARERCAPABILITY_NOTAVAIL = 58,SWITCH_CAUSE_SERVICE_UNAVAILABLE = 63,SWITCH_CAUSE_BEARERCAPABILITY_NOTIMPL = 65,SWITCH_CAUSE_CHAN_NOT_IMPLEMENTED = 66,SWITCH_CAUSE_FACILITY_NOT_IMPLEMENTED = 69,SWITCH_CAUSE_SERVICE_NOT_IMPLEMENTED = 79,SWITCH_CAUSE_INVALID_CALL_REFERENCE = 81,SWITCH_CAUSE_INCOMPATIBLE_DESTINATION = 88,SWITCH_CAUSE_INVALID_MSG_UNSPECIFIED = 95,SWITCH_CAUSE_MANDATORY_IE_MISSING = 96,SWITCH_CAUSE_MESSAGE_TYPE_NONEXIST = 97,SWITCH_CAUSE_WRONG_MESSAGE = 98,SWITCH_CAUSE_IE_NONEXIST = 99,SWITCH_CAUSE_INVALID_IE_CONTENTS = 100,SWITCH_CAUSE_WRONG_CALL_STATE = 101,SWITCH_CAUSE_RECOVERY_ON_TIMER_EXPIRE = 102,SWITCH_CAUSE_MANDATORY_IE_LENGTH_ERROR = 103,SWITCH_CAUSE_PROTOCOL_ERROR = 111,SWITCH_CAUSE_INTERWORKING = 127,SWITCH_CAUSE_SUCCESS = 142,SWITCH_CAUSE_ORIGINATOR_CANCEL = 487,SWITCH_CAUSE_CRASH = 500,SWITCH_CAUSE_SYSTEM_SHUTDOWN = 501,SWITCH_CAUSE_LOSE_RACE = 502,SWITCH_CAUSE_MANAGER_REQUEST = 503,SWITCH_CAUSE_BLIND_TRANSFER = 600,SWITCH_CAUSE_ATTENDED_TRANSFER = 601,SWITCH_CAUSE_ALLOTTED_TIMEOUT = 602,SWITCH_CAUSE_USER_CHALLENGE = 603,SWITCH_CAUSE_MEDIA_TIMEOUT = 604,SWITCH_CAUSE_PICKED_OFF = 605,SWITCH_CAUSE_USER_NOT_REGISTERED = 606,SWITCH_CAUSE_PROGRESS_TIMEOUT = 607,SWITCH_CAUSE_INVALID_GATEWAY = 608,SWITCH_CAUSE_GATEWAY_DOWN = 609,SWITCH_CAUSE_INVALID_URL = 610,SWITCH_CAUSE_INVALID_PROFILE = 611,SWITCH_CAUSE_NO_PICKUP = 612,SWITCH_CAUSE_SRTP_READ_ERROR = 613
} switch_call_cause_t;
进度通知
-
URL 就是cti_bridge配置的URL
-
action
- request 请求转接参数
- hangup 通话挂断
- ring 收到180
- progress 收到183
- answer 通话应答
-
uuid 通话UUID
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