Positron V-114 User Manual (PDF) - VoIPon Solutions

Positron Telecommunication Systems Inc. – V-114 Analog PCI CardIAX OptionsIAX (Inter-Asterisk Exchange Protocol) is a communications protocol for settingup interactive user sessions. IAX is similar to SIP (Session Initiation Protocol ). Itwas developed as a robust, user-friendly alternative to SIP, MGCP (MediaGateway Control Protocol) and RTP (Real-Time Transport Protocol).IAX is well suited for control and transmission of streaming media and VoIP(Voice over Internet Protocol). Because IAX works well with all codecs, it isadaptable to almost any type of data transmission. Communications bandwidthand latency are minimized by means of multiplexing and trunking. IAX works wellin conjunction with firewalls and allows the transmission of several data channelsover one link. IAX uses the same path for both signaling and media.In IAX, handshaking is not required when a call is initiated, which renders thecommunication vulnerable to denial-of-service (DOS) attacks. However, the riskcan be reduced by the use of firewalls, passwords and other standard securitycountermeasures.70VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299