Shane Burrell writes:

We have grandstreams and a few customers that want to block there outbound caller id. Has anyone done this? I'd really like the *30 and *31 feature to work but if you turn it on the openser server blocks the call.

openser does not block anything on its own. it depends on how you write your openser.cfg. check if you can use, e.g., uac module to implement what you want. if that does not work for you, you can use b2bua features of sems for that purpose.

-- juha