OpenVox will start a summer sale promotion from 1st August to 31th August. A 30% off discount will be offered for our Digital Gateway series. Octasic® chip is adopted for transcoding and echo cancellation. They are available in 1/2/4 T1/E1 ports with PRI/R2/SS7 signaling. And support SNMP and TR069 for background management. We provide 7x24 perfect techinical support. Please find details in below table. Any assistance, please contact our sales team email@example.com.