SK 16 Series VoIP Gateway is a 16-channel GSM VoIP Gateway used to smoothly transit between mobile and VoIP networks for transmission of voice and SMS. 1 channel supports 4-8 ports SIM Cards switching, which allows a great performance for cost saving. Integrated GSM connectivity and SIP protocol compatible with mainstream VoIP platforms, it is suitable for enterprises, multi-site organizations, call terminators and areas with limited landline like rural area to cut down telephone costs and enable easy & efficient communications.
| 16 SIM slots, 16 antennas | API |
| Polarity Reversal | HTTPS/HTTP Web Configuration |
| GSM: 850/900/1800/1900MHz | Port and Port Group |
| PIN Management | Configure Backup/Restore |
| SIP v2.0, RFC3261 | Caller/Called Number Manipulation |
| SMS/USSD | Firmware Upgrade by HTTP/TFTP |
| Codecs: G.711A/U , G.723.1, G.729AB | SIP Codes Mapping |
| SMS to Email, Email to SMS | CDR(10000 Lines Storage Locally) |
| Echo Cancellation | White/Black List |
