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Extensions have a gosth calls

eabzu

December 16, 2016 10:53

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I have 8 N412 and i have an issue in all of them

When the operator calls to the client, as soon as the conversation ends after hangs up the extenxion of operator rings

How could disable this behabour?

 

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14 comments

• 0
  
  Oscar Colka December 19, 2016 11:03

  Which country are you in? I heard from my Yeastar technical support representative in some countries(UAE specially), if the PSTN line enable MWI, the N412 would get ghost calls the same behavior as what you described. I would suggest you to try disable MWI for the PSTN line or ask help from Yeastar support engineer by submit a ticket. 

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  Jose A. Ortega Cancho GG6 December 19, 2016 11:27

  The customer have a TRUNK SIP only with outgoing calls

  No use PSTN lines and haven't a inbound routes, only send calls with analog extensions

  Thanks for the help Oscar

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  Jean El Hajj December 19, 2016 15:22

  If calls are made from analog extensions, then maybe it's a hook flash issue.

  Sometimes hanging up from analog phone would send a hook flash to the system putting the call on hold, so it will ring back to the user.

  You can try to decrease the max flash of that extension which is by default 1000 ms or you can check by long pressing on the phone hook when hanging up.

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  eabzu December 20, 2016 11:37

  is there any way to disable this function?

   

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  Jean El Hajj December 21, 2016 12:32

  You cannot disable it but you can set the min flash and max flash time to their lowest values to minimize the range between them which is considered as the hook flash duration time and may solve the issue.

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  Mauro December 30, 2016 23:01

  I've already installed an N412 with BRI module (1 BRI connected) and I think that I've the same behaviour; after received the ghost call I'd look into the call logs and I'd found an incoming call from a my Telco service provider (0421200 I'm in Italy the number seems from Telecom Italia), the problem happen a few time during the days, can anyone verify if is the same at your side?

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  eabzu January 02, 2017 09:21

  Hi.

  It looks like we solve the problem configuring the minflash value to 299 and the maxflash value to 300

   

  Thank's for the help. :-)

   

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  Jean El Hajj January 03, 2017 07:15

  Glad to hear it works.

  Happy new year :-D

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  Mohammed January 07, 2017 11:22

  Hi, I have similar problem with Cisco SPA509G and MyPbx, reception phone always rings by itself. Please advise.

• 0
  
  Max Sartini January 08, 2017 19:12

  Hi Mauro... you have received an SMS to you phone number... and telecom send this special call to informe you. I hope this information will be useful.

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  Oscar Colka January 09, 2017 06:40

  Mohammed, If you are using SIP phone, it might not the same as that Eabzu reported. To understand your issue better, try answer below questions:

  1. Do you use any PSTN line in the MyPBX?

  2. Which country are you from?

  3. How do you setup the inbound route? Do you configure the incoming call to ring group?

  4. What do you hear when you answer the ghost calls?

  5. Is the caller ID displayed as unknown? 

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  Mauro January 09, 2017 18:33

  Hi Max, as I wrote in my previous post I suppose that your opinion is the most likely so did you know how can I read-delete this SMS message?

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  Max Sartini January 09, 2017 21:18

  Hi Mauro. Try to call 42404... A TTS system can read your SMS. For more information: https://www.tim.it/assistenza/gestione-linea-e-servizi/fisso/telefonoservizi-supplementarisms-ascolto-vocale 

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  Trent January 21, 2017 05:39

  This is a common issue with SIP telephones. You need to find in the setting where to only accept calls from the PBX (do not allow SIP calls).