chan_capi supports both FoIP (Fax over IP) standards: T.38 and Clear
Channel fax with V.34, ECM, intelligen fax processing, on demand change
between voice and fax. All provided by Diva hardware in TDM
(E.1/T.1/S0) environment fax features are available for T.38 and Clear
Channel Fax.
In case chan_capi is used to terminate or initiate the fax
transmission all necessary features are provided by Diva softIP. softIP
exposes one CAPI interface towards
chan_capi and SIP interface towards IP network.
This
is no need to change chan_capi configuration. This is only necessary to
specify softIP as CAPI controller. All other configuration details are
handled by Diva softIP configuration.
Diva softIP allows to preserve all voice features. This is possible
to process voice calls over IP and switch between voise and fax media.
Diva softIP can be used
in one system with Diva hardware and
supports line interconnect (conferencing) between processed by Diva
hardware and by softIP voice streams.
In case softIP is used with one or more Diva boards in resource
board mode then V.34 Clear Channel Fax and G.729, iLBC, G.726, G.723,
GSM and other vocoders receive available for chan_capi.
softIp can be used in virtualized environment (VMWare, XEN, ...)