AT command CHLD=3 on SIMCOM508 modem to make multiparty call returns ERROR.

Discussion in 'Embedded Systems and Microcontrollers' started by kishoreinme, Oct 11, 2011.

  1. kishoreinme

    Thread Starter New Member

    Oct 11, 2011
    2
    0
    Hello

    I have a SIMCOM508 modem connected to minicom on ubuntu.
    Iam able to make calls, add, hold, wait, swap and sms except multiparty conference call.

    I have followed the steps in http://www.microchip.ua/simcom/GSM-G...0Note_V1.0.pdf
    to try this

    The final AT+CHLD=3 returns just an ERROR from the modem.

    is there any sequence to be followed doing this?
    could someone help out?
    Thanks
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Are you should it works in a standard phone with your simcard? The feature could be disabled at the provider.
     
  3. kishoreinme

    Thread Starter New Member

    Oct 11, 2011
    2
    0
    Dear Kubeek

    Thanks for the pointer. checked it. the operator support was disabled. the problem solved.

    :)
     
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