Main Features:
1. 4/8 channels GoIP gateway,4/8 SIM cards
2. USSD for balance checking
3. Support hot plug for SIM card
4. Support RC4, VOS encryption
5. GSM network 850/900M/1800M/1900M
6. Support IMEI changeable
7. Support white list and black list
8. Support SMS send and receive, SMS group send
9. Exact caller ID detect and dispaly
10. Extra second dialing, for card sendig and call back
11. Hi-end voice DSP processor(AudioCodec),no echo
12. Flexible dialing rule, can use for anywere
13. Dual server mode, insure the device working safely
14. LCR feature, calling route
15. Smart call back feature
16. Based on SIP2.0(RFC3261) protocal
17.Voice codec: G.729，G.723，G.711 A/U,etc.
Parameter:
1. Physical interface: 100M RJ45 ports(X 2), GSM/VoIP channels(X
2. Environment: Power adapter (12V/1.2A output)
3. Temperature: 0 ~ 50℃
4. Dimensions: Standard 1U box
5. Weight: 2KG

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