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- Users: ThorbjornS
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Call back device
Dear Markus, I represent the vendor Global NewTech in Austria. We do offer GSM Call-Back Gateways that can significantly reduce your roaming cost by reversing your calls. Our gateways are attached to your PBX with analog extension lines and are equipped with SIMs of your choice. The gateways...- ThorbjornS
- Post #2
- Forum: Data Transmission general discussion
