said by dsl2u:
Often in discussions regarding IP phones people mention PBX's. Why? I thought you program your IP phone with the VOIP information necessary and plug it into the router.
said by dsl2u:
Since you can get DID #'s for free or close to it, I definitely am buying a multi-line phone. Is there any need for a PBX for that? There will be maybe 1 extension phone but its just me answering it in 1 of 2 locations. I was thinking that a PBX maybe allows easier transfer of calls. That wouldn't be necessary in most home setups.
To me, it's a matter of features and convenience.
The PBX registers to multiple accounts at multiple providers (CallCentric, VoIP.MS, GoogleVoice, Skype).
All of our devices (computers, smartphones, tablets, and ata's) register to the PBX.
A new number/account only needs to be added at the PBX, as opposed to individual devices.
A call to our main phone numbers/accounts between 7 am and 9 pm will ring all of the smartphones, tablets, and ata's, otherwise, it rings my devices only.
Calls to individual numbers/accounts only ring the desired devices (between 7 am and 9 pm), otherwise, it goes to voice mail.
I can answer a Skype call on an analog phone (via ata).
Individual voice mail.
Outbound call routing (wife's devices _always_ uses CallCentric).
Hotel style wake up calls.
Call forwarding to cell phones.
White listing / black listing of phone numbers.
Some calls (such as IPKall's verification that a given number is still in use, or after a change to a sip uri) always go to voice mail.
Calls from unknown phone numbers go through Interactive Voice Response (voice menus).
Repeat calls from telemarketers get a Special Information Tone (We're sorry, you have reached a number that has been disconnected or is no longer in service).