Currently have a DVA-G3670B and internal network.
Have a mail server and 3cx exchange with softphones on our PC's for VOIP plus a couple plugged into router as backup.
Everything works OK except
QOS for phones are not good under heavy internet connection (someone else using a VPN to get files etc)
ADSL data slows badly when others off our exchange kids get home in the late afternoon and VOIP starts getting very poor.
I have been thinking of putting in a wireless connection (we are rural in the waikato) for the phones and to use it as backup if adsl fails (long piece of wire from our house to the exchange that regularly gets lightning damage )
Looking for ideas and suggestions please?
My thinking is
A seperate 3G router (Telecom dongle) with wireless N running on a different internal IP address that we use for VOIP connection. What are good devices and what dongles do people have experience with that work? Need at least one LAN wired connection on it.
If ADSL fails we just turn on the laptops and connect to second SSID it is running to stay working.
As all the servers are virtual i could setup a second connection on each one that used the second gateway ip address so they could have access.
This way VOIP is always via the 3G plus we can use it whebver the adsl fails but changeover is not automatic.