# VoIP
Phone

IP Phones for Asterisk are the first on the market built specifically for use with Asterisk and Asterisk-based systems. All models include HD audio and plug-and-play deployment at a price that fits any budget. With multiple line appearances, context-aware soft keys, and advanced applications that integrate directly with Asterisk features,

## Gateway models

### GSM Gateway

VoIP GSM gateway providing GSM network connectivity for softswitch and IP PBX. It supports communication: VoIP to GSM and GSM to VoIP. Thus the calls costs could be significantly reduced by VoIP or GSM network.

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### FXO Gateway

FXO VoIP gateway that connects analog telephone lines or PABX extension interface to VoIP networks. It is a cost-effective and reliable solution for office-to-office voice connectivity.

Fully compliant with SIP and IAX2 Flexible calling rules Superb voice compression with industry standard codecs Line echo cancellation for 8, 16, 32, 64 or 128 ms echo delays Tested and certified with Elastix, BroadSoft, and others

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### PRI Gateway

A VoIP PRI Gateway enables direct routing of calls between the fixed line ISDN and the cost-effective IP networks for capitalizing on low cost VoIP telephony. By integrating a VoIP PRI Gateway with existing PBX / PABX telephone systems, businesses of all sizes can benefit from low-cost Voice over IP calls and achieve substantial cost savings without the high upfront costs associated with communications infrastructure changes related with the migration to VoIP . Add up to 24 (T1) or 30 (E1) crystal clear digital calls to your Asterisk system with a Digium single span digital telephony card. Available in PCI or PCI Express form factor, the single span cards use state of the art technology for unsurpassed call quality and system compatibility..

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### FXS Gateway

FXS VOIP Analog Gateways FXS Aanlog gateways used to connect the Analog Phones, Fax, Dial pad & Headsets and Telephones with IP PBX Systems. You can Use Voip Services thru FXS gateways also. If You have installed IP Telehony Communication/VoIP/IP-PBX/Systems it not necessary you can buy New VoIP Phones you can use you tranditional analog phones, fax machine with the help of FXS VoIP Analog gateways. This can reduce your cost of voip system

Fully compliant with SIP and IAX2 Flexible calling rules Superb voice compression with industry standard codecs Line echo cancellation for 8, 16, 32, 64 or 128 ms echo delays Tested and certified with Elastix, BroadSoft, and others

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