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Gateway is not sending messages. Modem log reports "Error sending SMS: No SMSC number given."


If your gateway is not sending messages and in modem log you've got following error:

Wed 2016/03/09 17:01:26 gammu-smsd[2275]: Error sending SMS: No SMSC number given. Provide it manually or use the one configured in phone. (EMPTYSMSC[31])


We suggest to put the SMSC number in sms daemon configuration, it should solve that issue. To do so:
1) Log in via SSH

2) edit config file:
(modem #1)                    nano /etc/gammu-smsdrc1
(optional for modem #2) nano /etc/gammu-smsdrc2

3) At the bottom of the file add (we advise to add this after line with deliveryreports):
smsc = xxxxxx (where xxxxx is your smsc number)
Please also add empty line at the end of the file.

4) save and exit

5. Restart modem software
a) Enter webGUI > tab Maintenance
b) disable selected Modem and press "Save" button
c) enable selected Modem and press "Save" button


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