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<DIV>Hi list,</DIV>
<DIV> </DIV>
<DIV>we operate a commercial PSTN-replacement service.</DIV>
<DIV> </DIV>
<DIV>For my setup we need to restrict the contact-information that the user
register with.</DIV>
<DIV> </DIV>
<DIV>Only the assigned E.164 number in "Contact" shall be allowed with a
specific "Digest username" in REGISTER</DIV>
<DIV>Our contact and digest_username are very similar and only differ by a
prefixed '0' in contact.</DIV>
<DIV> </DIV>
<DIV>E.g.</DIV>
<DIV>Contact: <sip:0123456@cpe.network:5060;transport=UDP></DIV>
<DIV>Authorization: Digest username="123456", realm="network......</DIV>
<DIV> </DIV>
<DIV>Is it possible to compare these two and only allow registration if the
comparison returns true?</DIV>
<DIV> </DIV>
<DIV>Thanks for your help and best regards,</DIV>
<DIV>Gerhard</DIV>
<DIV> </DIV>
<DIV> </DIV><FONT SIZE=3><BR>
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