Many companies currently connect their analog phone lines to GSM networks using software PBX. This requires a good, functional solution - e.g., a GSM gateway for voip termination or a GSM board. If you need to organize several PBX for companies, for example - the branch network, an important requirement for the devices is their compactness.
A GSM-board is a compact and versatile solution for the transition from a traditional to a modern VoIP communication in the enterprise. It will transform an ordinary computer into a server to connect to the GSM network that supports multiple communication channels. Thus, using the board, you can go to use the cellular connection and significantly reduce the cost of it.
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Basic requirements to GSM-cards
When organizing VoIP telephony for the enterprise, the basic requirements to the GSM-board are as follows:
· High-quality voice communication;
· Receiving and sending SMS-messages;
· Compatibility with IP PBX, which is installed in your office.
Before you buy a GSM-board, you should find out if it supports echo cancellation. Only in this case, it will be able to ensure normal performance. Most businesses carry out the SMS-sending, so you could do with the execution of AT commands for SMS, provided in the device. You should also learn in advance whether the GSM board make you are buying is compatible with your IP PBX.
What GSM board to choose?
Users speak well of GSM boards produced by OpenVox. This is a Chinese company supplying equipment and software for softphones. Main characteristics:
· Support of multiple GSM-channels for simultaneous operation;
· The ability to change the IMEI;
· Mass SMS-distribution function;
· Echo cancellation function for digital sound quality;
· Shortcut dialing settings.
The boards from OpenVox are compatible with many IP PBXs:
● Asterisk;
● Elastix;
● Trixbox;
● Other IP PBX solutions.
OpenVox & Yeastar GSM Gateways
In order to connect analog phone lines to the GSM network, you can use VoIP GSM gateways from OpenVox, which are also used for gsm termination. With their compact size and price affordable for everyone, they are distinguished by good functionality. The devices have a built-in Asterisk and intuitive interface, and support the function of sending SMS-messages.
Another alternative is GSM gateways from another Chinese manufacturer Yeastar. The product line includes 1, 4, 8, and 16-channel models. With small size, the equipment is also characterized by versatility. Inside, there is already a full-fledged Asterisk of version 1.6x. It can send and receive SMS.
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