1. RJ11 FXS ports
2. Protocol: SIP (RFC 3261), IAX2
3. Transport: UDP, TCP, TLS,SRTP
4. Voice Codec : G.711 (alaw/ulaw), G.722,G.726, G.729A,
GSM, ADPCM, Speex
5. Quality Enhancement ITU-T G.168 LEC, dynamic Jitter
Buffer, VAD, CNG, PLC
6. DTMF Mode:RFC2833, SIP INFO, In-band
7. 32 FXS ports
8. Fully compliant with SIP and IAX2
9. Flexible calling rules
10. Reliable fax performance with T.38
11. Provides high-quality voice compression with
industry standard codecs
12. Line echo cancellation for 32, 64 or 128 ms echo
delays
13. Web-based GUI for easy configuration and management
14. Excellent interoperability with a wide range of
legacy and IP equipment