Admin Guide - Mizu Voip

5.124. Enable session-timerWith session timers (RFC 4028) you can prevent orphaned sessions (hung calls).Session timers are not enforced by default to prevent any complications or incompatibilities on a new server.If all the media are routed trough your server, then there is no much reason to enable session timers because the media timeout can usually preventorphaned calls. However if your server doesn’t need to route the media and you see orpaned calls (long calls in the current calls form which are no longervalid) then you should enabled this feature.To avoid incompatibilities with all kind of client devices not supporting session timers or reinvite, you should enable session timers only for SIP server andTraffic sender users (or just for the devices generating orphaned calls). Just set the “sessiontimer” field to a value higher than 0:--1: never use-0: don’t use (Default)-1: load from global config-2: yes if the peer has timer support-3: always yes, forced-Other: use with the specified timeout (minutes). Not recommendedAlso please review the related global configuration settings (search for “sessiontimer” on the Configurations form):sessiontimer: 0: don’t use,1: load from global config ,2: autodetect (and using the sesskeepalive interval from the global configuration),3: autodetect withturned on by default, Other: use with the specified timeout (minutes)sessiontimerhandlelocally: wheter the server should handle or just bypass. 0=no,1=auto,2=forward,3=yesdef_min_sessiontimer: minimum allowed value in seconds (sent also as “Min-SE” with the sip signaling). Must be higher then 3.def_mid_sessiontimer: recommended value in secondsdef_max_sessiontimer: maximum accepted value in secondsRecommended configuration:-If there are no orphaned calls or media is routed leave the configuration with the default values (with the sessiontimer set to 0 which means disabled)-If there are some orphaned calls set the “sessiontimer” field to 3 for SIP servers or Traffic senders generating orphaned calls.-If there are a lot of orphaned calls (it can happen if the server network connection is not stable) set the “sessiontimer” field to 3 in the global settings(Configurations form)5.125. Reseller rightsYou can use the tb_users rigths field to limit the reseller rights (affecting mostly the webportal user interface):0: minimal rights8: can’t edit tariffs and can’t add resellers10: can’t edit tariffs