FREE TollFree SIP Termination

We offer FREE SIP termination services for all U.S. Toll-Free Destinations ( 1-800, 1-844, 1-855, 1-866, 1-877, and 1-888 ) with no SIP registration nor signup required! Place calls to toll-free numbers from your IP-PBX, Softswitch, IP Phone, or ATA.

Learn more   Asterisk Configuration   FreeSWITCH Configuration   F.A.Q.

Number Formats SIP Server SIP Port CODEC DTMF Mode DNS SRV

You do not need to register to our SIP proxy, nor do you need to register for any type of account.

We will transmit whatever valid ANI you send us. If you do not send a valid ANI, we will transmit a default ANI.
ANI should be sent in the initial INVITE, as a SIP URI in any of the following headers, in order of preference:
P-Asserted-Identity, Remote-Party-ID, or From

Some example headers:

P-Asserted-Identity: "Jane Doe" <sip:[email protected]>

Remote-Party-ID: "Agustus Gloop" <sip:[email protected]>

From: "John Q Public" <sip:[email protected]>

10 digit, 11 digit, and full E.164 formats are all accepted.

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exten => _800NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _844NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _855NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _866NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _877NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _888NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})

exten => _1800NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _1844NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _1855NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _1866NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _1877NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _1888NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})

exten => _+1800NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _+1844NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _+1855NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _+1866NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _+1877NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})
exten => _+1888NXXXXXX,1,Dial(SIP/TollFreeProxy/${EXTEN})

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<extension name="tollfree">
     <condition field="destination_number" expression="^(\+1|1)?(8(00|44|55|66|77|88)[2-9]\d{6})$">
       <action application="bridge" data="[email protected]"/>

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Is this service really free?


My SIP device is not listed. How do I send calls?

Please send calls in the format
ie, if you were to call 1-800-555-1212, you would send the call to sip:[email protected]

Can I use your service to update my postage meter?

YES! Our toll-free termination service works well for dialing in to postage meter vendors. If your internet connection has high jitter (most residential and small business connections do) please configure your ATA to use the highest possible jitter buffering, and please disable any echo cancellation and silence cancellation.

Why does the Asterisk configuration show ulaw:10 instead of just ulaw?

Our native packetization is 10ms. Specifying ulaw:10 will direct your asterisk to use 10ms packetization as well. While you are certainly free to use a higher packetization, using a lower packetization (such as 10ms) will increase audio quality!

I am behind a NAT. Is there anything special I need to do?

Please ensure that your device knows its own external IP address and port numbers. This can be accomplished using STUN, or by manually specifying in your device configuration. Please consult the documentation that came with your device, or contact the manufacturer, for additional information.

Is the audio quality as good as would be expected with a paid service?

The audio quality we provide is actually superior to that provided by many paid services!

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