Intergrate with Akuvox IT83 or FE-TERM-10P with mobotix T25

How can I Intergrate with Akuvox IT83 or FE-TERM-10P with mobotix T25
I tested on FE-TERM-10P ( same Akuvox IT83 indoor monitor ) but it only audio with black screen.
I change to H263+ on mobotix T25 still get only audio and black screen .

please help