SPA 3102 - Call Waiting

Discussion in '3CX Phone System - General' started by tobiastromm, Apr 16, 2011.

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  1. tobiastromm

    tobiastromm New Member

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    Hi.

    I try to do call waiting work with GrandStream HT 486 and SPA 3102.

    I see another old post and I have change this value on SPA 3102:



    After do that I enable this option in HT 486:



    The PSTN call waiting works fine after do that, but when I set DTMF option to Yes on HT 486 I can't transfer calls to internal extensions.

    How can I fix that?

    Thank You
     

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  2. tobiastromm

    tobiastromm New Member

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  3. KerryG

    KerryG Active Member

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    This is really not an appropriate configuration for a PBX. Each line needs to have its own interface. You should never have lines with call waiting coming into the PBX because you are trying to mix call routing from your phone system with call routing from the phone company. If you need to accept multiple calls, then you need multiple phone lines.
     
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  4. tobiastromm

    tobiastromm New Member

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    Kerry,

    I´m a home user.

    Multiple lines is not for me.

    There is no way to do the two thing work at the same time?

    The problem is that when enable DTMF I can´t do internals transfers.

    Thank You.
     
  5. leejor

    leejor Well-Known Member

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    Kerry is right, it is an either, or, situation. You can use the 3102 with call waiting if you use a telephone plugged into the FXS port, but you can't if you use it as an incoming trunk to a PBX. The flash feature of a PBX can't be used internally if you wish to use a residential flash feature on the trunk.

    If you have a high speed internet service at home, and want the features that 3CX provides, then I would think seriously about moving (porting) the second phone number to a VoIP provider. Some can provide the service ( especially just an incoming number), for not much more than the additional cost of the second number on your first line, if that.
     
  6. tobiastromm

    tobiastromm New Member

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    Leejor,

    I'm using the SPA 3102 as a Gateway.

    PSTN Line -> SPA 3102 -> 3CX Server -> GrandStream -> Analog Phone.

    I don´t know if you are understand my bad english, but, If DTMF is Disabled I cant transfer calls to internal extensions (but can´t answer the second call and alternate then when I press FLASH). If DTMF is enabled I can answer the second PSTN call and alternate between the calls (BUT if I PRESS Flash 102 - to call and transfer to a internal extension - the FLASH tone is sent to PSTN line and not to 3CX Server).

    It is not a second number. Is the same number with call waiting enabled.

    I will make another tests.
     
  7. leejor

    leejor Well-Known Member

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    I do understand what you are trying to accomplish, but, you want your cake and to eat it too. A flash feature , such as call waiting, on a phone line is a residential (or single line business) feature, it is not meant to be used with a line going into a trunk on a PBX. Any flash on an extension on the PBX is expected to be used with a PBX feature. You can't switch, on an as needed basis, between whether the PBX responds to a flash or the phone line responds to the flash. As you've discovered, you can set it up one way, or the other. It sounds like a PBX on your line, with the features that your are trying to use, may not be the best choice.
     
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