With over 15 years of experience in designing, developing, and manufacturing VoIP products, DBL Technology has established her name as a leading supplier of VoIP GSM gateways (GoIP), SIM Bank, Radio trunking gateways (RoIP), VoIP FXS(ATA) Gateway and VoIP Phone. DBL products can be fully integrated with users’ systems seamlessly as they are fully compatible with the industry H.323 and SIP standards.  They have been tested extensively for compatibilities with various VoIP systems.   With constantly improved technology, the flexibility and compatibility of DBL products allows you to take full advantage of any future enhancements we make and helps you stay on the cutting edge of technology.  Nice OEM service with professional R&D team and good after service with top technical support team are provided to the customers. Moreover, flexible marketing and sales strategies are adopted to meet the customers’ various demands. Further information, welcome to contact us.