Cisco Cisco IOS XE Software Release 2

SIP:Customizable Late to Early Offer

SIP:Find Me

SIP:Instant Messaging and SIMPLE

SIP:Interoperability for INVITE authentication

SIP:IP - FQDN URI translation

SIP:regular expression based routing

SIP:SDP media line removal

SIP:SIP - Specific Event Notification

SIP:SIP header manipulation with regular expression/privacy

SIP:SIP trunk-group ID routing

SIP:Support for “Supported: Path” under REGISTER request

SIP:Support for IP Realm

SIP:Support for P-KT-UE-IP support

SIP:Support for PRACK/100rel interworking

SIP:Support for Softswitch registration timer shielding

Support for P-called party identifier, P-Associated URI (RFC3445)

Support for Subscriber Policy

Cisco and the Cisco Logo are trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and other countries. A listing of Cisco's trademarks 
can be found at 

. Third party trademarks mentioned are the property of their respective owners. The use of the word 

partner does not imply a partnership relationship between Cisco and any other company. (1005R)

)Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and 
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and 
coincidental.

© 2009 Cisco Systems, Inc. All rights reserved.