using analog fax in r200p

hi 

i ty to use fax with r200p configuring a voip account with t38 enabled.

i set t38 enabled in r200p but doesnt work.

if I use instead of r200p a SPA112, it works.

i use the same line with same fax.

someone have tried this?

thank you

I haven't tried this, (don't have an r200p but have years of VOIP experience) but for clarity:

What communication speed is set in the fax machine?

Are you getting failures in inbound or outbound faxing, or both?

Is it connecting then failing to send/receive, or failing to do anything?

j

i have a problem with sending a receiving faxex.

i tried all velocity with ecm disabled.

the same fax with cisco SPA112 is working good