Send your toll free calls to us for free termination like so:
sip:18005551212@tollfree.sip-happens.com
Asterisk config example:
[toll-free]
exten => _1888NXXXXXX,1,Dial(SIP/${EXTEN}@tollfree.sip-happens.com)
exten => _1877NXXXXXX,1,Dial(SIP/${EXTEN}@tollfree.sip-happens.com)
exten => _1866NXXXXXX,1,Dial(SIP/${EXTEN}@tollfree.sip-happens.com)
exten => _1800NXXXXXX,1,Dial(SIP/${EXTEN}@tollfree.sip-happens.com)
FreeSwitch config example:
<extension name="tollfree">
<condition field="destination_number" expression="^(\+1|1)?(8(0{2}|8{2}|7{2}|6{2})[2-9]\d{6})$">
<action application="bridge" data="sofia/default/1$2@tollfree.sip-happens.com"/>
</condition>
</extension>
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