2. SIP trunks/hosted PBX will save you some money but you need a good connection
3. You need QoS if you only have 1 internet connection. If you are doing a lot of calls at once you might want to get your another connection http://www.bandcalc.com/
4. If you go with a SIP trunk might as well use hosted PBX onebox, ringcentral, toktumi are ones that I have heard of
5. If you need high reliability stay on analog lines and get a server with FXS, I have used Xorcom. Cost is around $1100.
6. Do you need fax? Some hosted services come with faxtoemail and emailtofax.
1. If you want decent wireless phones I think your budget might be a bit low, check out the Snom M3 http://www.voipsupply.com/sh-m3dect-basic, or the Aastra 57iCT http://www.voipsupply.com/aastra-6757i-ct. (Cisco's phones are not worth the money)
2. SIP trunks/hosted PBX will save you some money but you need a good connection 3. You need QoS if you only have 1 internet connection. If you are doing a lot of calls at once you might want to get your another connection http://www.bandcalc.com/
4. If you go with a SIP trunk might as well use hosted PBX onebox, ringcentral, toktumi are ones that I have heard of 5. If you need high reliability stay on analog lines and get a server with FXS, I have used Xorcom. Cost is around $1100.
6. Do you need fax? Some hosted services come with faxtoemail and emailtofax.