[cisco-voip] TP EX90 one way video only

[sheref hf]

Dear all
I have TP EX90 with real IP address; I tried to make video call with another TPbut we face an issue; they can see me but I can't
TP Ex90 ---> LAN ---->Router----> Internet <---- TP Ex90
I configured static NAT on router //  ip nat inside source static 192.168.0.50 196.2XX.X.XXX
Is there any additional configuration to solve this issue??


ThanksBR,
Sherif Ibrahim Moahmed
Network Engineer
CCVP, CCNP 		 	   		  
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