Ejointech 4G LTE 32-Port VoIP Gateway GSM Module SIP Gateway with 128 SIM Slots and VoIP Gateway Price - [ACOM532L-128]

ACOM532L-128 4G VoIP Gateway VoIP Gateway is a multi-functional and high performance product, which convert GSM network to VoIP.It supports mutiple concurrent lines.It is widely used in call center, enterprise communication,sim active, sms verify code, sms marketing, automated appointment reminder service,sim recharge and corporate sms,veryfication sms,wallet payment system etc. Specifications Model ACOM532L-128 Frequency Bands Global Network Compatible SIP Specification SIP/2.0 RFC3261Session Timer RFC4028STUN Network Protocols DHCP/PPPoE/VPN(PPTP/Open VPN)NTP Telnet/HTTP/FTP/TFTPEncryption:Ejoin,VOS2000,RC4,XOP.Base64 Telephone Hot-line call ,Dial plan, Speed dial, Phone book,CDR, LCR, White/Black list Telephony Signaling DTMF tone detection/generationDTMF relay: in-band, RFC 2833 and SIP infoCall forward: unconditional, no answer and busyN-way conferencingCaller ID display/generation, Mobile Number Portability Voice Capability Voice codecs:G729a/b/e,G723.1,