Fax over g711 (if it's going to work at all) should not be affected by proxy media or default media handling as long as you allow PCMU/PCMA when using the default media handling. However, T38 and fax over 711 are completely different. Using T38 through FreeSWITCH with the default media handling will require some extra configuration (nothing drastic). No one said anything about transcoding... Proxy media mode does not have the ability to transcode at all as FreeSWITCH is completely unaware what codec you are using (internally it actually reports "proxy" as the codec). Just because you're using default media mode DOES NOT mean you will be transcoding. Using some Sofia params and late-negotiation dialplan logic you can have an incredible amount of control over what codecs your end points are using. As long as they agree on at least one codec and codec parameters you are the one who decides which codecs take precedence and whether or not you'll be transcoding. On Wed, Mar 9, 2011 at 12:13 PM, Max Clark <max.clark@gmail.com> wrote:
Advantages of Proxy Media:
1) Support codecs not natively supported by FreeSWITCH 2) Lower CPU resources on FreeSWITCH
So for 1) I'm really only concerned with t38/fax over g711. With our current configuration faxing (although unsupported) is working just fine. What should I expect if I revert to media mode?
2) If I disable transcoding, what kind of difference in resource utilization should I expect? Nominal (less than 10%), Moderate (11-30%), or more?
Thanks, Max
-- Kristian Kielhofner