Yeastar GSM Gateway TG1600

#1: Number of Ports: 16

#2: GSM Frequency: 850/900/1800/1900 MHz

#3: WCDMA Frequency: 850/1900 MHz, 850/2100 MHz, 900/2100 MHz

#4: 4G Data:  X

#5: 4G LTE Band: Depending on the module type

#6: Protocol: SIP, IAX2

#7: Antenna Splitter (4 in 1): Support

#8: Transport: UDP, TCP, TLS, SRTP

#9: Voice Codec: G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, Speex

#10: DTMF Mode: RFC2833, SIP Info, In-band

#11: Echo Cancellation: ITU-T G.168 LEC