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Unsupported YEASTAR TG400 Behind SBC

adarshsivadas

Bronze Partner
Joined
May 27, 2025
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Hi,
can anyone help me here in connecting a TG400 GSM gateway to a 3CX on the cloud through an SBC.
i have managed to work the inbound calls, but outbound calls still not working.
thank you
 
Hi,
can anyone help me here in connecting a TG400 GSM gateway to a 3CX on the cloud through an SBC.
i have managed to work the inbound calls, but outbound calls still not working.
thank you
Please note that the 3CX SBC is only intended for provisioning desk phones, ATAs, and FXS gateways.

GSM gateways should not be placed behind the 3CX SBC. Please refer to this document for guidance. Since GSM gateways are an unsupported setup in this configuration, any further assistance will need to be handled directly with the vendor.

Best regards,
 

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