My ISP offers some VoIP service which is provided via the same network cable as internet does. The ISP techsupport claims that the only known ways of connection allowing me to use VoIP is such that VoIP phone or VoIP gateway is placed between my computer/router and ISP.
I don't have VoIP phone nor VoIP gateway and want to avoid buying one and pretty sure that I can use offered VoIP service from my PC directly. Probably All I need is the proper VoIP software. I don't know which one will suite me, though.
I'm using Windows Vista and want to primarily use VoIP service for voice mail (in fact voice mail is the only thing I need, but other features like normal calls can be handy too).
There are also some parameters which may be important for the software selection: Speech encoding: G.711a, G.711u, DTMF - RFC2833.
The ISP says what following hardware is recommended for it's VoIP service:
- Fanvil BW-210
- Zyxel V301-T1
- Grandstream BT-100
- WellTech LP-388
- NSGate 3388
- Nag SNR-VP-6020
- D-Link DPH-120S
- Grandstream НТ-502
- Welltech ATA-172
The question: Is there are any software solutions which will suite my needs? If so, which ones?
Update: AFAIK SIP-phone abilities isn't limited to only outgoing calls and in case of ordinary phone connected to SIP provider via SIP-gateway it's possible to use voice mail feature of the ordinary phone (if that phone have this feature of course). In that case I don't need to use voice mail service from my SIP-provider. If above is correct then I'm pretty sure that I can run some software which will emulate voice mailbox on my PC.