Hold a meeting on the Xinshitong platform, the Hubei conference sit can not enter the meeting, view the RMCC in the Beijing terminal we find the Beijing to Hubei concatenation can not enter the conference, but the Hubei terminal has enter the local concatenation. The Beijing to Hubei RMCC connection show the network is OK
In GK information, we find the head of the number form Beijing is begin with 27, but Hubei return the number begin with 027.
Check the Hubei MCU’s GK and RMCC area code setting, and they are different, then we set them the same number 27, hold a meeting again it become OK.
It may be the GK area code setting problem
Do not change the configuration of the normal system, if we need change it for temporary we should change it back after that.