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VoLib CID module - need more information

Stan Sidorov
Expert 1985 points

Hi there,

I am implementing CID package from VoLib library and need some more information about Type 2 (call waiting) mode.

So when cidCtlMsg_t.call_waiting = True; does CID generate SAS, CAS and then wait for ACK? 

Thanks.

Stan

  • 0
    TI__Guru* 96960 points
    What device are you using? I'll move your thread to that device's forum.

    Todd
  • 0 in reply to ToddMullanix
    Expert 1985 points

    It is C5535 but as far as I remember all VoLib questions should be posted in TI-RTOS branch. 

  • 0 in reply to Stan Sidorov
    TI__Guru* 96960 points
    I've moved your thread. We are pushing the VoLib queries to the device forums.

    Todd
  • 0 in reply to ToddMullanix
    TI__Guru* 95265 points

    The CID generator performs message formatting and FSK modulation of the caller ID signals. The modulated signal is embedded in the voice signal and delivered in the voice-band.

    The caller ID information, which includes the phone number, name, and time, is passed to the component through a control message. The generator is responsible for generating the modulated caller ID signal based on the message. The Caller ID generator provides both Type I and Type II support.

    In the Type II case, it will not generate SAS, CAS or ACK. You need to use the TGE in the VOLIB for this purpose.

    Regards, Eric

  • 0 in reply to lding
    Expert 1985 points

    Hi Eric, thanks for your reply. 

    It sounds about right whatever I tried CID could not generate SAS, CAS. But then I cannot figure out the purpose of call waiting bit?  It seems useless if CID does not generate SAS and CAS. In addition, why TI declares Type 1 or Type 2 support if CID does not have any access to SLIC or PBX to inject messages in right places?

    So now my understanding is CID is only capable to generate / detect SDMF or MDMF messages and no more.

    Regards,

    Stan 

  • 0 in reply to Stan Sidorov
    TI__Guru* 95265 points
    Stan,

    The Volib or CID module is part of the TI VoIP full solution framework, we already exit that business so I don't have the history why we have the call waiting bit, as I looked at the user guide (.chm file) and example test code, there is no further reference to this field. I knew the TGE module is designed to generate single or dual frequency tone, that can be used for SAS and CAS generation purpose.

    Regards, Eric
  • 0 in reply to lding
    Expert 1985 points

    Eric, thanks for the reply. 

    Fair enough. I know TGE pretty much well so can generate required signals myself. Just wanted to make sure I did not overlook anything in CID. I have to say that again - VoLib library is poorly documented, that is why there are so many questions in the forum. Anyway, thanks for your help.

    Regards,

    Stan