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Today, there are more than one million Asterisk-based communications systems in use, in more than 170 countries. Asterisk is used by almost the entire Fortune 1000 list of customers. Most often deployed by system integrators and developers, Asterisk can become the basis for a complete business phone system, or used to enhance or extend an existing system, or to bridge a gap between systems.
FXO - Foreign Exchange Office is the port that receives the analog line from the telephone company (Telco). It is the line coming from the wall and is the Dial Tone coming from your Telco.
FXS - Foreign Exchange Subscriber is the port that delivers the analog line to the user. This port sits in the your Asterisk PBX, and provides you with a Dial Tone and an extension number. This is where you connect an ANALOG phone (your old home analog phone).
|Codec Support||G.711, G.729, T.38|
|IP Protocol||SIP / UDP, SIP / TCP, SIP TLS|
|Signaling Fields||DTMF RFC 2833|
|Caller-ID (CLI)||P-Asserted-Identity, Privacy Support|
|Deliver as traditional T1/PRI||Available upon request|
|Local||$0.01 per minute|
|United States (Contiguous)||$0.0175 per minute|
|Canada||$0.0175 per minute|
|Alaska||$0.3656 per minute|
|Hawaii||$0.0495 per minute|
|United States (Contiguous)||$0.0095 per minute|
|Canada||$0.0095 per minute|
|Alaska||$0.43125 per minute|
|Hawaii||$0.02798 per minute|
|International||Available upon request|
|US Phone Number||$2 per month|
|US Toll-free Number||$2 per month|
|E911 Service||$1 per number / month|
|International DIDs 50+ countries available||Available upon request|
|Number Porting||$7.50 per number|