[Asterisk-Users] Draytek SIP phones are broken

[Jan Janak]

Hello,

if you have a Draytek SIP phone, please check if the phone doesn't flood
your server with SIP REGISTER messages. Draytek phones are broken and
keep sending REGISTER messages after receiving 200 OK (even if expires
value is long enough).

Several such phones are flooding iptel.org public servers these days. If
you have direct contact to Draytek developers, please send it to me.

   thanks, Jan.