Does this modem support PPPoE passthrough or the function "Disable NAT"? I live in Italy and for my ISP "TIM" (the biggest ISP in Italy) these functions are almost indispensable, not by chance the mod

The VoIP phone works fine most of the time, but when it has some problems I find these informations in the system log: 1) "can not find any account forthe incoming call" 2) "prefix 'x', you enabled th

There are dozens and dozens of discussions about this problem, but no solution. Two errors, which lead to frequent disconnections: Recv no OFFER, DHCP Service unavailable Send DISCOVER with request ip

How long is the NAT refresh time? How many seconds? For how long a router keeps records in the NAT? I found this on internet: According to Section 4.3 of RFC 4787, the UDP timeout of a NAT should not

How do i know if the modem/router has a Symmetric NAT? This information is really important regarding VoIP, yet I can't find it anywhere, nor do I know how to get it. Can someone help me? I have a mod

Advanced - Telephony - Telephone Numbers - Modify - Advanced, here i can't find the preferred codec to set for my VoIP, where I could choose between G.711, G.722 etc... I have always found these setti