Specifications of RTU

Supported codecs

• H.261, H.263, H.264 video pass-through
• Conversion of media-codecs (G.729 (plain,A,B,AB) G.723.1, G.711, GSM FR, Speex, iLBC)
• Protocol normalization to ensure seamless interoperability

Network security

• NAT traversal
• Concealment of the owner's network topology
• Caller authentication by IP address or login and password based on:
• data stored in the DB
• data received from RADIUS servers

Supported Protocols

• SIP v.2.0 (RFC 3261)
• H.323 v.2 and later (including H.245 v.7, H.225 v.4)
• ETSI/ITU ISUP (SIGTRAN)*, MGCP support on the core level
• SIP/H.323/ ETSI/ITU ISUP (SIGTRAN)* conversion
• T.38
• SNMP v.1, v.2, v.3 (statistics)
• RADIUS AAA
• RADIUS-based routing
• ENUM

*national dialects are implemented on demand

Call routing

Native routing capabilities

• Number of the calling/called party
• Route ASR
• Caller group ID
• Day of week/time of day
• Priority/accessibility of the destination GW
• Routing policies
• Gateway/route traffic load

External routing

• RADIUS -aided routing
• ENUM-aided routing

Statistics and network analysis

• Real-time monitoring of ASR, QoS, ACD, etc.
• Statistics monitoring of selected gateways/routes
• CDR-based report generation
• Handy CDR search and display capabilities
• Automated log file management (archiving, file size and file rotation control)
• Automatic or manual export of CDRs into a text file

Billing

• Single CDR collection point
• Exhaustive number of fields in CDRs for detailed analysis and debugging
• Integration with external billing systems using RADIUS protocol
• Cisco VSA
• Support of PoD
• Subscriber authorization in billing systems based on data provided by RTU

H.323 gatekeeper capabilities

• RAS registration of endpoint and other equipment
• Internetworking as a gatekeeper

SIP registrar capabilities

• SIP registration of endpoint and other equipment
• Equipment location service

Number translation

• Flexible number translation options based on regular expressions
• Concealment of the caller number

Logging and debugging

• Billing and debug logs
• System trace logs with selectable information detail level
• Call log viewing through the web-interface
• Call simulation

Total capacity

Concurrent calls:

• up to 150,000

New calls per second (CPS)

• up to 1,000 per traffic entry point

BHCA

• up to 10,000,000

Retail capacity:

Number of subscribers:

• 25,000 per 1 server*

* Typical server configuration: 2x Intel Xeon E5530, RAM 6G

Capacity and scalability

RTU provides unmatched flexibility of combination between retail and transit functionality as well as excellent scalability for both parts.

RTU capacity easily scales up with an increase of processor core’s number in a cluster as well as respective RAM growth.

Operating systems:

• Debian Lenny, Squeeze