i want to disable specific numbers for call forwarding, but only for forwarding. For example:
In Germany the number 112 is for the fire department, and 110 for the police station.
If one of our employees want to forward a call to a colleague with the internal SIP 12 and make a mistake and dial 112 the caller will be forwarded to the fire department.
But to block 112 and 110 in general (Blacklist) is not the solution, because in case of a fire oder robbery
Another idea would be allow call forwarding only to internal SIPs. To differentiate it with the length of the forwarding will not work, because 112 has 3 digits, and many internal SIPs have 3 digits.
Hi Thomas, I have never seen anyone accidentally forward to 112 because they meant to set it to 12, but…
I guess you could specify a caller ID match in the outbound route for that particular dial pattern. This means it wouldn’t work for call forward, which should preserve the original caller ID.
It sounds to me like you’re over-complicating something though and that could land you in more trouble than an accidental dial to 112, which you’d find out about long before someone wasn’t able to make an emergency call.
That said, it’s not something you can easily test in the wild and, personally, I’d feel very uncomfortable being asked to implement it.
Someone else might tell you it’s not allowed. Others, it can or can’t be done. I’m saying don’t bother.
first of all thanks for reply, but i would not ask about if i didn’t seen anyone did accidentally forward to 112. The caller got it as a joke when someone on the other side told him he calls to the fire dept.
Whether it’s allowed or not is not the question, because i just want a solution for call forwarding. Nobody want forward to the fire dept. or police in real. I developed a Softphone where my colleagues can forward to internal SIPs only, but on a real device (SNOM) i have to manage that on our freepbx, i guess.
No, you can specify the Caller ID match on the far right column, assuming it’s set in the extension and not the outbound route or trunk. Match rows for each extension’s Caller ID with multiple rows if necessary. I don’t know if this works for Emergency Caller ID, and don’t wish to advise on the specifics any further for something I haven’t personally tested. Please familiarise this for yourself using other call types for testing purposes.
