I want to make a phone call but chan_dongle try to connect to the modem

[いけ]

I want to make a phone call (iax phon → asterisk → my home analog phone)   but chan_dongle try to connect to the /dev/ttyUSB_utps_modem.

I think that it is necessary to connect to the /dev/ttyUSB_utps_diag.

I think setting is correct. 

Please tell me what's wrong. 

I write the configuration .

1.console error message

Connected to Asterisk 11.6-cert2 currently running on localhost (pid = 5075)

    -- Accepting AUTHENTICATED call from 192.168.1.100:

    --        > requested format = speex,

    --        > requested prefs = (),

    --        > actual format = ulaw,

    --        > host prefs = (),

    --        > priority = mine

    -- Executing [0526116761@default:1] Dial("IAX2/201-6754", "Dongle/dongle0/0xx611xxxx") in new stack

    -- Called Dongle/dongle0/0526116761

    -- Dongle/dongle0-0100000000 is making progress passing it to IAX2/201-6754

[Jun 13 14:14:56] ERROR[5119]: chan_dongle.c:414 do_monitor_phone: [dongle0] Lost connection to Dongle

    -- [dongle0] Dongle has disconnected

  == Everyone is busy/congested at this time (1:0/0/1)

    -- Auto fallthrough, channel 'IAX2/201-6754' status is 'CHANUNAVAIL'

    -- [dongle0] Trying to connect on /dev/ttyUSB_utps_modem...

[Jun 13 14:14:58] WARNING[5116]: chan_dongle.c:218 opentty: unable to open /dev/ttyUSB_utps_modem: No such file or directory

    -- Hungup 'IAX2/201-6754'

    -- [dongle0] Trying to connect on /dev/ttyUSB_utps_modem...

    -- [dongle0] Dongle has connected, initializing...

    -- [dongle0] Dongle initialized and ready

2./dev/ttyUSB*

[root@localhost ~]# ls /dev/ttyUSB*

/dev/ttyUSB_utps_diag  /dev/ttyUSB_utps_modem  /dev/ttyUSB_utps_pcui

3.dongle.conf

[dongle0]

audio=/dev/ttyUSB_utps_diag    ; tty port for audio connection;     no default value

data=/dev/ttyUSB_utps_modem    ; tty port for AT commands;         no default value

4.extensions.conf

[default]

exten => _X.,1,Dial(Dongle/dongle0/${EXTEN})

[いけ]

I solved the problem on their own. 

dongle.conf was wrong. I do not know why, but it is working. With the following settings.

3.dongle.conf

[dongle0]

audio=/dev/ttyUSB_utps_modem    ; tty port for audio connection;     no default value

data= /dev/ttyUSB_utps_pcui   ; tty port for AT commands;         no default value