StarTrinity Softswitch

Description

The software is a free Windows-based class 5 softswitch with billing and web interface. It can be used for VoIP wholesale, origination, termination, also as a platform for building various VoIP applications: PBX systems, IVR servers, conference servers, SBCs, call centers, auto-dialers. Call procesing in the softswitch is based on CallXML scripts. The softswitch is a continuously-self-tested system with high stability and performance. SIP and RTP modules are used by more than 350 customers all over the world.

Key features

Freeware for unlimited channels

FAS detection and suppression

Generation of FAS: before connection, after disconnection, loopback audio

Long PDD detection

Detection of dial tone signal in RTP packets, post-dial delay (PDD) measurement. Detection of ringback tone inside RTP packets, reporting of RBT delay

Dead air, one-way audio detection

RTP jitter, packet loss, low MOS detection

Web API for integration with your third-party software

Test call generator (TCG) robot calls blocking (against SIM block issues)

Detection of ringback tone, call answer and call termination events from RTP audio stream (for SIP-bluetooth-GSM termination with asterisk module chan_mobile)

Human/machine detection to reject machine calls or avoid SIMs from blocking in GSM gateways (SIMBOXes)

Whitelisting, blacklisting with custom complex logic

Google Speech API v2 for automatic speech recognition (ASR) IVRs

Continuous VoIP call quality measurement of both caller and called party. Embedded testing of softswitch, IP network, trunks and SIP phones

Protocols: SIP over UDP and TCP, RTP, RTCP, HTTP

CallXML scripting engine: easy-to-understand, compact scripts, from simple to complex

Web interface for configuration

Supported audio codecs: G.711, G.723, G.729.

Email alerts and reports on SIP trunk call capacity overloads and low audio quality detections