PLANET 4-Port SIP VoIP Gateway. Product colour: Black. Voice codecs: CNG, G.711a, G.711ulaw, G.723.1, G.726, G.729A, G.729B, VAD, iLBC. VoIP protocols: SIP v2.0（UDP / TCP），RFC3261，SDP，RTP（RFC2833），RFC3262、3263、3264、3265、3515、2976、3311. WAN connection: Ethernet (RJ-45). Power requirements: 100-240VAC, 50-60 Hz@DC12V 1A, Power consumption (typical): 5 W...
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