we are currently migrate an old siemens hicom pbx to cucm at a german location. At this location we have a lot of "public" phones with internal access only. At the old pbx i can call the attendant console with a "public phone", i say to the desk-user "give me a line, please" and they do a blind transfer to the pstn (dial 0 for pstn access). I hear a dial ton and can dial i.e. a national number.
Is this possible with cucm? I can work with fac, but this is not what the customer wants, because the inhibitation is not so high without a real person, who is connecting you.
Also we try with call forwarding on a dn to the pstn, without success.
We have a CUCM 7.1.3 and MGCP Voice Gateways (3845) with e1 trunks to the pstn, the attendant console is an arc enterprise software.
Thanks in advance!