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[SOLVED] NO CARRIER on ADT command

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aldo85

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Goodmorning, I'm using Telit HE910-D modem and I'd like to make a voice call, but when I run command:

ATD+39*********;

It returns error "NO CARRIER".
Anybody have an idea?
Thanks
 

To my knowledge, Telit HE910-D is a Wireless MODULE, it is not a complete cell modem. You have to design it in with the appropriate antenna attached and SIM card for network carrier access and have the unit in an area where it can be granted access to a cell. If you have not addressed these things, it will not be able to make any transmissions.
Problems with antenna choice, SIM card, and cell tower proximity can all cause a " NO CARRIER" error message.
 

ftsolutions said:
To my knowledge, Telit HE910-D is a Wireless MODULE, it is not a complete cell modem. You have to design it in with the appropriate antenna attached and SIM card for network carrier access and have the unit in an area where it can be granted access to a cell. If you have not addressed these things, it will not be able to make any transmissions.
Problems with antenna choice, SIM card, and cell tower proximity can all cause a " NO CARRIER" error message.
Click to expand...

Thank you for your answer, you're right Telit HE910-D doesn't support voice calls, only HE910-G HE910-Gl HE910-EUR support them.
 

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