Admin Guide - VoIP software provider

Numbers are treated as “short” if its length doesn‟t exceed the value set by the “billshortnumlength” global config option.Calls between endusers are billed with the “internal_providercost” and “internal_endusercost” values (defaults to 0).5.84. Cropping sound on ring when playing voice (ringtone, announcement or any other promptCropping sound on ring when playing voice (ringtone, announcement or any other prompt)Set the stopplayeronrtprec global config value.5.85. How to play user credit in IVRCreate a “Play number” action.Enter [credit] for the file name.5.86. Mizu Server securityOS security:Follow the instructions below to secure your VoIP environment:-do not install any third party software on your VoIP server-enable the embedded windows firewall. It‟s speed and application level packet filtering is perfect for VoIP. Enable only the needed applications(voipserver.exe, mssql.exe, vfpt.exe)-always change the default MSSQL port from 1433 (this is not a security issue, but when the MS SQL runs on the default ports, you canexperience lots of login attempts).-disable all unneeded network services (IIS, FTP, etc)The mizu server has the following built-in automatics attack prevention mechanism:Address level attack preventions:-DOS attack prevention: when there are too many messages received from an IP address, the address will be blacklisted automatically. Controlledby MAXSUBSMSGCOUNT and MAXSUBSMSGPERIOD global configuration settings.-when there are too many “wrong” or meaningless messages from an IP, the address will be blacklisted automatically. Is controlled byMAXWRONGMSGALLOWED global configuration setting.Session level security:The server will close the session on the following circumstances:-absolute timeout, call timeout, media timeout, ring timeout, call init timeout, timeout on session timers