VoIP equipment made in China is the most popular among the terminators. This is primarily due to its low cost and availability of the functions necessary for effective GSM termination - IMEI change, SMS, rotation and migration of SIM cards. There are several popular manufacturers. We will look at two of them - GoIP and Portech.
The lineup
Both brands produce GSM gateways for a different number of ports and their price category is approximately the same. The lineups present both single-channel and multi-channel devices. The GoIP lineup includes equipment for 1, 4, 8, 16 and 32 channels. Portech produces the same but there are 2-channel gateways in the lineup. Devices that have a small number of ports are ideal for beginners, while 32-channel gateways are designed for a larger business. The 1- and 2-channel gateways can be installed as an accessory, if you decide to expand. On the market there are 32/128-card SIM-banks by GoIP and by Portech available.
Functionality of Portech
Each GSM gateway of the Portech lineup is manufactured in several versions:
- SMS version (the function of sending SMS messages)
- IMEI version (IMEI change)
- CDMA version (supports CDMA standard)
- 3G/UMTS (supports 3G/UMTS standard)
- 3G/UMTS IMEI version (supports 3G/UMTS standard and change of IMEI-number).
Each version differs from the standard version by price. But there is a disadvantage to the terminator as a successful simulation of human behavior requires the simultaneous availability of IMEI change and SMS functions. Support for UMTS standards is also desirable to have all SIM-cards used for GSM termination operating.
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In addition, despite the ability stated by the manufacturer to change the IMEI number, users of portech voip gsm gateway note difficulties in using this function. Contacting technical support has difficulties in communication as representatives speak Chinese mostly.
In the Portech lineup there are also 32/128-card SIM-banks available, providing an integrated storage of SIM-cards. If you are using SIM-boxes in conjunction with the SIM Server from the manufacturer, you can control portech mv-378 gateways remotely, as well as their migration and rotation. There are several versions of the SIM-servers - with support for up to 128, 256 and 512 SIM-cards that cost from $550 to $2,140. Also, there is the SMS-server for mass sending/receiving SMS messages that costs $1,690.
Functionality of GoIP
Hybertone, producing GoIP VoIP gateways and SIM-banks, offers additional software for the termination free of charge. The software can be downloaded from the official website but the manufacturer warns that the SIM-server and SMS-server may contain defects. To take advantage of all of these programs may require a competent specialist who is familiar with traffic termination to set up the equipment.
The IMEI changing function is implemented by random number generation but not the Loon algorithm. Random numbers do not effectively mask the SIM-card from AntiFraud as mobile operators rather quickly notice a substitution. As you can see, the Chinese equipment has a fairly limited functionality.
GoAntiFraud can expand the capabilities of the GoIP gateways and the SIM-banks. By connecting your own equipment or equipment bought from us, the terminator gets access to a complete SIM-server and SMS-server. In addition, GoAntiFraud customers can take advantage of the real IMEI base, which we provide. Each SIM-card will be assigned a unique identification number belonging to the operating telephone device.
