Can I use of sense for VoIP
I wants to know that can I use pfsense to combine three links of Internet each one with 512kbps and use it for VoIP gateways,
Because my internet is not enough to use for VoIP, so thanked if this way work .
Let me know,
Generally your problem with VoIP is latency and jitter, which is inherent in your connection, and the only thing multiple lines will get you is more bandwidth. You can carefully load balance VoIP (like send one portion of phones over one connection, another portion over another, not just load balancing connections as you'll break VoIP) and actually have enough devices that you're bandwidth-limited, then yes you can use multi-WAN for that.