Quote Originally Posted by VOIPoTim View Post
The reason some of the codes are not in the traditional numbering is that the HT502 intercepts some of them when we use the traditional numbering.
Bummer on the code interception. Is this the "Special Feature" setting on the HT502? I looked at the options that dropdown and see that you can choose 'standard' 'CBCOM' 'RNK' or 'Huawei'. But there's no option for 'disabled' or 'none'... Do you think Grandstream would be willing to allow their vertical service code interceptions to be completely disabled?