[asterisk-users] Asterisk Security: Allow only one phone per sip registration

[Terry Wilson]

> Is there a way one can bind sip account to specific mac-address
> (assume on
> the same subnet). In this way, even if you know the username/secret,
> you
> will still have to use the same physical phone, unless you play with
> mac-address.

No. And mac addresses are easily spoofed so it would not help. Use passwords. Keep them safe.