1. 2007-10-29 [Sip-implementors] SIPit 21 registration closes today sip-imple Robert Sparks 2. 2007-10-26 [Sip-implementors] SIPit 21 registration closes this sip-imple Robert Sparks 3. 2007-10-23 [Sip-implementors] SIPit 21 registration closes in le sip-imple Robert Sparks 4. 2007-10-01 [Sip-implementors] SIPit 21 registration closes Oct 2 sip-imple Robert Sparks 5. 2007-09-13 Re: [Sip-implementors] SIPit 21 registration is open. sip-imple Robert Sparks 6. 2007-08-20 [Sip-implementors] SIPit 21 registration is open. sip-imple Robert Sparks