The 2N VoIP GSM Gateways - 2N® VoiceBlue Lite and 2N® VoiceBlue Enterprise are IP based SIP or SIP/H.323 GSM Gateways, which enable to make calls directly from IP phones to GSM networks. 2N VoIP GSM Gateways are compatible with any IP PBXs including Asterisk.

VoIP card in ISDN PRI GSM Gateways

The key advantage of the 2N VoIP GSM Gateways is derived from the support of both signaling protocols - both SIP (Session Initiation Protocol), which is the key protocol for tomorrow's multimedia communications and enables to introduce emerging WEB-BASED multimedia communication and H.323. The 2N VoIP GSM Gateways enable to make 4 calls simultaneously and give you a 100% control of your GSM calls.
The 2N® VoiceBlue Enterprise VoIP GSM Gateway can be also utilized as a protocol translator between SIP and H.323 environments.

The 2N® VoiceBlue Lite VoIP GSM Gateway has been successfully tested and proved compatible with the Cisco Call Manager and Alcatel Omni PCx Enterprise systems.

Some differences between 2N VoIP GSM Gateways and a small VoIP Gateway with analog ports + analog GSM Gateways:

1. CLIP transfer - 2N® VoiceBlue can transfer the CLIP, the other GW is unable to it at all or can do it with great difficulties.
2. Rerouting to another SIM in the event of a GSM network, SIM or module error - 2N VoiceBlue® VoIP GSM Gateways can do this without any problem, it can reroute a call to another channel or SIM, while the other option cannot do it because there is no signaling and thus no way how to tell the VoIP GW that there is a problem. This all means that the ASR drops dramatically.
3. Solution reliability - the reliability of a solution is given by the number of elements used and we can say that the more elements, the lower the reliability of the system. 2N VoiceBlue® VoIP GSM Gateway is a single compact unit while the other device is not.
4. Installation is much quicker and trouble shooting easier with a single box.
5. There is no need to understand "old-fashioned" PBXs, no analog (BRI,PRI) ports (cards) are used, no port configuration is necessary. All you need is to understand the IP telephony.

Types of VoIP GSM Gateways GSM Gateways