协议/标准
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SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV,NAPTR), DHCP,SSH, TFTP, NTP, STUN, SIMPLE, LDAP, TR-069,802.1x, TLS, SRTP, IPv6 ,LLDP-MED
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语音编码
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支持G711.μ/a,G.729 A/B,G.722(宽带),iLBC,Opus,带内和带外DTMF(in audio,RFC2833,SIP INFO) VAD, CNG, AEC, PLC, AJB, AGC, ANS
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