I am not sure where to look for DSP card. We had this T.38 faxing working with the same hardware a year back. Now with the latest software version, i am not sure why i am not able to send the T.38 FAX.
Please let me know if there is any way to make sure if i have the proper hardware for T.38 faxing.
As i mentioned earlier, i have T.38 fax license and hardware(Not sure how to check). I allowed T.38 codec in (Codec Settings), Configured Network Zone to T.38 FAX profile(I have attached in my previous posts showing T.38 FAX configuration).