- Universal Signaling Converters
- A-bis Compression for BTS Connection via Satellite Links
- 3G Video Gateway (SIP-H.324M)
Universal Signaling Converters
The runaway development of the telecommunications industry has led to a wide array of signaling systems, and yet more are sure to come.
The PROTEI line of signaling converters ensures seamless integration of modern and next- generation equipment into your network. The well-proven reliability of our solutions makes certain that your installations will deliver the dependability and quality that your subscribers demand.
The following options are supported: SS7-R2, SS7-R1.5 (Russian 2CAS), SS7-PRI, PRI-R2, and PRI-R1.5. On the same platform wide range of small and medium capacity trunk gateways can be implemented: SIP-SS7, SIP-PRI, and SIP-R2. Solution capacity is up to 16E1.
A-bis Compression System for BTS Connection via Narrowband Satellite Links
A-bis compressing solution intended to enable mobile communications over narrowband satellite channels.
The solution consists of several Modules of Concentration (MC) installed on the remote sites and Group Modules of Concentration (GC) installed on the site of network operator.
It is proposed to use the equipment supporting packed data transferring via IP protocol as the base station (BTS) e.g. nabobs by paces Ltd may be used. The nabobs communicate with base stations controller via IP channel using the proprietary protocol Abs over IP. Voice stream is transmitted by RTP-protocol using AMR codecs.
For bandwidth reduction before satellite transmission system Modules of Concentrations are installed. MC and GC performs removing overhead information transmitted over IP-channel using highly efficient IP-headers’ compression algorithms. The main purpose of MC/GC is concentration of headers in IP- packets, which usually exceed the useful contents of the IP-packet. For example, for the codec AMR7.4, useful (voice) data is 19 bytes. Additional information transmitted in the header is consists of headers codec AMR (2 bytes), RTP (12 bytes), UDP (8 bytes), IP (20 bytes), Ethernet (18 bytes) is 40 bytes in summary.
Average compression ratio for IP headers is more than 3 that means annual compression efficiency is more than 40%.
3G Video Gateway (SIP-H.324M)
PROTEI Video Gateway enables mobile operators and service providers to deliver a variety of advanced video services to 3G customers. This carrier-grade solution connects mobile networks and NGN/IMS networks. This device can operate as independent solution or complement PROTEI Service Platforms powering the deployment of interactive converged video services over any bearer.
With these platforms such services as like Video IVR, Video Mail and Video RBT and more can be enjoyed by 3G handset owners.
PROTEI Video Gateway connects mobile networks and IP networks. It supports real-time bi-directional video and voice telephony between 3G-324M-based mobile terminals and IP-based video media servers, messaging systems, SIP-terminals etc.