<div dir="ltr">We would like to present a toll free CallerID when making outbound toll calls. In the past, when our PRIs were directly connected to a Nortel CS1000 we could do this, without issue. Now that the PRIs are front ended by a mediagateway facing asterisk, we can no longer do this. <div>
<br></div><div>Is it possible to set the billing number via a SIP header and set what should be presented as callerid as another header for presentation? </div><div><br></div><div>We can't possibly be the only people in the world that has faced this challenge. Searching the internet has provided limited results.</div>
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