{HEAD ~ The present invention} relates to communication between users in diverse communication systems, and more particularly, to providing {TAIL ~ a broadband communication system} including an Internet Protocol Telephony Network and public switched telephone network 
relates particularly to providing
{ HEAD ~ The present invention } relates to communication between users in diverse communication systems , and more particularly , to providing { TAIL ~ a broadband communication system } including an Internet Protocol Telephony Network and public switched telephone network
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