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4G/源代码/lib/cc.lua
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247
4G/源代码/lib/cc.lua
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--- 模块功能：通话管理
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-- @module cc
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-- @author openLuat
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-- @license MIT
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-- @copyright openLuat
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-- @release 2017.11.2
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module(..., package.seeall)
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require"ril"
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require"pm"
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--- 通话中
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CONNECTED = 0
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--- 通话保持中
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HOLD = 1
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--- 正在呼出
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DIALING = 2
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ALERTING = 3
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--- 正在呼入
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INCOMING = 4
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WAITING = 5
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--- 正在挂断通话
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DISCONNECTING = 98
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--- 通话已挂断
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DISCONNECTED = 99
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local req = ril.request
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local publish = sys.publish
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--底层通话模块是否准备就绪，true就绪，false或者nil未就绪
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local ccready = false
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--通话列表
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local call_list = {n= 0}
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--通话断开原因
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local discReason
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--- 是否存在通话
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-- @return bool result 存在通话返回true，否则返回false
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-- @usage result = cc.anyCallExist()
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function anyCallExist()
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return call_list.n ~= 0
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end
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--- 查询某个号码的通话状态
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-- @string num 查询号码
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-- @return number state 通话状态，状态值参考本模块Fields定义
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-- @usage state = cc.getState('10086')
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function getState(num)
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return call_list[num] or DISCONNECTED
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end
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--- 呼出电话
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-- @string num 呼出号码
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-- @number[opt=0] delay 延时delay毫秒后，才发起呼叫
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-- @return bool result，true表示允许发送at命令拨号并且发送at，false表示不允许at命令拨号
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-- @usage cc.dial('10086')
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function dial(num, delay)
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if num == "" or num == nil then return false end
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pm.wake("cc")
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req(string.format("%s%s;", "ATD", num), nil, nil, delay)
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call_list[num] = DIALING
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return true
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end
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--- 挂断通话
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-- @string num 号码，若指定号码通话状态不对，则直接退出，不会执行挂断，若挂断时会挂断所有电话
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-- @return nil
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-- @usage cc.hangUp('10086')
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function hangUp(num)
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if call_list[num] == DISCONNECTING or call_list[num] == DISCONNECTED then return end
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if audio and type(audio.stop)=="function" then audio.stop() end
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req("AT+CHUP")
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call_list[num] = DISCONNECTING
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end
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--- 接听电话
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-- @string num 号码，若指定号码通话状态不对，则直接退出，不会接通
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-- @return nil
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-- @usage cc.accept('10086')
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function accept(num)
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if call_list[num] ~= INCOMING then return end
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if audio and type(audio.stop)=="function" then audio.stop() end
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req("ATA")
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call_list[num] = CONNECTING
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end
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--- 通话中发送声音到对端,必须是12.2K AMR格式
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-- @string data 12.2K，AMR格式的数据
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-- @bool[opt=nil] loop 是否循环发送，true为循环，其余为不循环
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-- @bool[opt=nil] downLinkPlay 声音是否在本端播放，true为播放，其余为不播放
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-- @return bool result true为成功，false为失败
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-- @usage
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-- cc.transVoice("#!AMR\010\060*********")
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-- cc.transVoice("#!AMR\010\060*********",true)
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-- cc.transVoice("#!AMR\010\060*********",true,true)
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function transVoice(data, loop, downLinkPlay)
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local f = io.open("/RecDir/rec000", "wb")
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if f == nil then
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log.error("transVoice:open file error")
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return false
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end
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-- 有文件头并且是12.2K帧
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if string.sub(data, 1, 7) == "#!AMR\010\060" then
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-- 无文件头且是12.2K帧
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elseif string.byte(data, 1) == 0x3C then
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f:write("#!AMR\010")
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else
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log.error('cc.transVoice', 'must be 12.2K AMR')
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return false
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end
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f:write(data)
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f:close()
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req(string.format("AT+AUDREC=%d,%d,2,0,50000", downLinkPlay == true and 1 or 0, loop == true and 1 or 0))
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return true
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end
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--- 设置dtmf检测是否使能以及灵敏度
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-- @bool[opt=nil] enable true使能，false或者nil为不使能
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-- @number[opt=3] sens 灵敏度，最灵敏为1
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-- @return nil
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-- @usage cc.dtmfDetect(true)
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function dtmfDetect(enable, sens)
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if enable == true then
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if sens then
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req("AT+DTMFDET=2,1," .. sens)
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else
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req("AT+DTMFDET=2,1,3")
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end
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end
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req("AT+DTMFDET=" .. (enable and 1 or 0))
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end
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--- 发送dtmf到对端
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-- @string str dtmf字符串，仅支持数字、ABCD*#
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-- @number[opt=100] playtime 每个dtmf播放时间，单位毫秒
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-- @number[opt=100] intvl 两个dtmf间隔，单位毫秒
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-- @return nil
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-- @usage cc.sendDtmf("123")
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function sendDtmf(str, playtime, intvl)
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if string.match(str, "([%dABCD%*#]+)") ~= str then
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log.error("sendDtmf: illegal string " .. str)
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return false
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end
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playtime = playtime and playtime or 100
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intvl = intvl and intvl or 100
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--req("AT+SENDSOUND=" .. string.format("\"%s\",%d,%d", str, playtime, intvl))
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req("AT+VTS=".. str)
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end
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local dtmfnum = { [71] = "Hz1000", [69] = "Hz1400", [70] = "Hz2300" }
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local function parsedtmfnum(data)
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local n = tonumber(string.match(data, "(%d+)"))
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local dtmf
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if (n >= 48 and n <= 57) or (n >= 65 and n <= 68) or n == 42 or n == 35 then
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dtmf = string.char(n)
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else
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dtmf = dtmfnum[n]
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end
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if dtmf then
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publish("CALL_DTMF_DETECT", dtmf) -- 通话中dtmf解码会产生消息AUDIO_DTMF_DETECT，消息数据为DTMF字符
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end
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end
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local function ccurc(data, prefix)
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if data == "CALL READY" then --底层通话模块准备就绪
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ccready = true
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publish("CALL_READY")
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req("AT+CCWA=1")
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elseif prefix == "+DTMFDET" then
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parsedtmfnum(data)
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else
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if data=="NO CARRIER" or data=="NO ANSWER" or data=="BUSY" then
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discReason = data
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end
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req('AT+CLCC')
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if data == "CONNECT" and audio and type(audio.stop)=="function" then audio.stop() end --先停止音频播放
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end
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end
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local function ccrsp(cmd, success, response, intermediate)
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if cmd=="AT+CHUP" then
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discReason = "CHUP"
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end
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req('AT+CLCC')
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end
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--注册以下通知的处理函数
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ril.regUrc("CALL READY", ccurc)
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ril.regUrc("CONNECT", ccurc)
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ril.regUrc("NO CARRIER", ccurc)
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ril.regUrc("NO ANSWER", ccurc)
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ril.regUrc("BUSY", ccurc)
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ril.regUrc("+CLIP", ccurc)
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ril.regUrc("+CCWA", ccurc)
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ril.regUrc("+DTMFDET", ccurc)
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--注册以下AT命令的应答处理函数
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ril.regRsp("D", ccrsp)
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ril.regRsp("A", ccrsp)
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ril.regRsp("+CHUP", ccrsp)
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ril.regRsp("+CHLD", ccrsp)
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ril.regRsp("+CLCC", function(cmd, success, response, intermediate)
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if success then
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local new = {n = 0 }
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if intermediate and intermediate:len() > 0 then
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for id, dir, stat, num in intermediate:gmatch('%+CLCC:%s*(%d+),(%d),(%d),%d,%d,"([^"]*)".-\r\n') do
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stat = tonumber(stat)
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if stat == WAITING then
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req('AT+CHLD=1' .. id)
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return
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end
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if call_list[num] ~= stat then
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if stat == INCOMING or stat == CONNECTED then
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pm.wake('cc')
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publish(stat == INCOMING and 'CALL_INCOMING' or 'CALL_CONNECTED', num)
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end
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end
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new[num] = stat
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new.n = new.n + 1
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end
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end
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call_list = new
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if new.n == 0 then
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publish('CALL_DISCONNECTED',discReason)
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discReason = nil
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pm.sleep('cc')
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end
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end
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end)
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--开启拨号音,忙音检测
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req("ATX4")
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--开启来电urc上报
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req("AT+CLIP=1")
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req("ATS7=60")
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req("AT+SETVOLTE=1")
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