GSM SIP 4 x SIM Gateway (GSM) is a digital gateway designed to simplify the interconnection of mobile phone systems to the IP telephony infrastructure
GSM SIP 4 x SIM Gateway (GSM) is a digital gateway designed to simplify the interconnection of mobile phone systems to the IP telephony infrastructure. It offers the possibility to connect the company to its mobile fleet. In doing so, it optimises the costs of calls but also the expenses related to the expansion of the company's fleet. Capacity: 4 SIM
| 1/4/8 GSM/CDMA channels | DWG2004/DWG2008 ports: 1 WAN, 3 LAN |
| DWG2001 ports: 1WAN, 1LAN | Signal strength indicator |
| GSM: Quad-band 850/900/1800/1900MHz | CDMA: 800MHz |
| Send and receive SMS | Support PIN protection |
| Monitor SIM card status via WEB | Hot plug SIM cards |
| Changed IMEI and PIN | Open SMS API interface, USSD |
| Talk duration restriction | Hide telephone number of SIM card |
| Reject incoming calls | Power supply: DWG2001: AC100~240V DC12V/1A, 50/60HZ |
| DWG2004/DWG2008: AC100~240V , 50/60HZ | Temperature: 0°C~40°C(Operation) -20～80°C (storage) |
| Humidity: up to 90% non-condensing | Certifications: FCC, CE |
| Dimensions (W x D x H):DWG2001: 112 x 76 x 24 mm | DWG2004/DWG2008: 440 x 305 x 44 mm |
| Weight:DWG2001:0. 7kg | DWG2004/DWG2008: 4.8kg/5.0kg |
| Penetrate NAT/Firewall | Support TCP/UDP, RTP/RTCP, HTTP, ARP/RARP, DNS, NTP, TFTP, TELNET, PPPoE, STUN |
| Static IP Configure | PPPoE Dialup |
| DHCP client |
| Supports Point-to-Point Protocol over Ethernet (PPPoE) client | Built-in PPPoE client to establish a DSL link connection with the ISP. No need to install another PPPoE driver on computers. |
| Smart QoS It provides an intelligent QoS function to provide stable voice quality while users access the Internet from private LAN to the Internet at the same time. | VoIP to GSM/CDMA call termination It allows up to 4 simultaneous calls, terminates VoIP calls to GSM/CDMA network. |
| Destination: GSM/CDMA to VoIP Maximum 4 simultaneous calls for each unit, calls from GSM/CDMA network to VoIP | Fully compatible Flexible choice, GSM/CDMA network worldwide usable |
| SMS supported Sending and receiving SMS provide an open API allowing third parties to develop their own business. | Management and maintenance Remote SMS charging, hot pluggable SIM cards, PIN protection of SIM cards, easy maintenance |
| Flexible number handling | Supports 32 number handling rules, replace call prefix and send calls to different ports and port groups |
| Route management More than 2 softswitch / SIP servers send calls to DWG200x, IP white and black list management | VoIP specifications |
| MGCP : with ISP bypass function (optional) | SIP signaling RFC3261 SIPv2. 0 |
| Support for user ID and password authentication | SIP proxy call |
| Voice Codec | G.711, G.723.1, G.729ab |
| Coding: A-law, μ-law | Enhanced echo cancellation (operator class): Rec. G 168, queue size up to 128 ms |
| Compatibility Compatible with traditional vendors, such as HUAWEI softX3000, elatix, voipswitch etc. | Compatible with other standard Softswitch and SIP server |
| FAX over IP (coming soon) | Use of industry standard T.38, up to 14.4 kbps |
| Call Features | Adaptive Voice Activity Detection (VAD) with Comfort Noise Generation(NG)Adaptive Jitter Buffer |
| Packet Loss Concealment | DTMF Signaling via RFC 2833 or SIP Info |
| Auto dial for speed | Adjustable Gain of port: -6db~+6db |