Partysip (cont’d)
osip_timer_thread - governs the retransmission timeout of SIP requests and responses
tlp - listens for the SIP messages
imp - processes incoming SIP messages
uap - provides redirect server support
slp - provides stateless proxy server support
sfp - provides stateful proxy server support
resolv - address resolution (e.g., URL interpretation, location lookup, domain mapping, etc)