How does voice codec selection for H.323 work with SmartWare?
The selection of a specific codec is somewhat tricky with the H.323 protocol. In SmartWare a specific codec can be entered at 2 different locations: a. in the h323 gateway configuration b. in the h323 interface configurationThe following example exemplifies a typical configuration:… interface h323 myif routing dest-interface isdn codec g711alaw64k use tone-set-profile default … gateway h323 alias h323-id inalp1400 alias e164 01233000 codec g723_6k3 30 30 codec g729 faststart ras gatekeeper-discovery manual 172.19.32.42 1719 RRS bind interface eth0 router no shutdown use voip-profile default The codec configuration in the gateway specifies the 2 codecs G.723 6.3kbps and G.729 as the set of allowed codecs. This set of codecs is sent to the remote H.323 gateway (or gatekeeper) during the capability exchange phase. The codec specified in the interface ‘myif’ is the preferred codec to be used. SmartWare places this codec is on top of the list of allowed codecs which is sent during the c
