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  #1  
Old 10-11-2011, 11:49 AM
kishoreinme kishoreinme is offline
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Join Date: Oct 2011
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Default AT command CHLD=3 on SIMCOM508 modem to make multiparty call returns ERROR.

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
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  #2  
Old 10-11-2011, 01:47 PM
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kubeek kubeek is online now
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Location: Prague, Czech Rep
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Are you should it works in a standard phone with your simcard? The feature could be disabled at the provider.
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Old 10-12-2011, 05:36 AM
kishoreinme kishoreinme is offline
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Dear Kubeek

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

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