[cisco-voip] Star(*)-67

[Andrew Herdman]

I have a Callmanager 3.3(x) with a mgcp managed PRI gateway (2651xm).  I 
have a group of users who want to be able to block their outgoing 
caller-id on a per call basis.  Basically they have asked if they dial 8 
for an outside line instead of 9, block the caller id.  So, we tried 
this and prepended *67 to the number, after striping off the 8.  Call is 
rejected by the ISDN provider.  A call into the provider indicates that 
we (the callmanager) needs to actually do the *67 functionality.  I am 
at a loss as to how to do this on a per-call demand basis for this 
group.  Has anyone else been able to implement this, or similiar 
functionality?

Thanks
  Andrew