Glossary

#

• 1xx response, see provisional response

• 2xx response

• 3xx response

• 4xx response

• 5xx response

• 6xx response

A

• ABNF, see augmented Backus-Naur form

• address-of-record

• AOR, see address-of-record

• augmented Backus-Naur form

B

• B2BUA, see back-to-back user agent

• back-to-back user agent

C

• call

• called party

• callee, see called party

• caller, see calling party

• calling party

• call leg

• call stateful

• client

• client transaction

• conference

• core

D

• dialog

• downstream

E

• early media

• element

• endpoint, see user agent

F

• final response

G

H

• header

• header field

• header field value

• home domain

I

• informational response, see provisional response

• initiator, see calling party

• invitation

• invited user, see called party

• invitee, see called party

J

K

L

• location service

• loop

• loose routing

M

• message

• method

N

• non-INVITE transaction, see regular transaction

O

• outbound proxy

P

• parallel search

• provisional response

• proxy

• proxy core

• proxy server, see proxy

Q

R

• recursion

• redirect server

• registrar

• registration

• regular transaction

• request

• response

• ringback

• route set

S

• server

• sequential search

• session

• SIP transaction

• SIP URI

• SIPS URI

• spiral

• stateful proxy

• stateless proxy

• strict routing

T

• target refresh request

• transaction, see SIP transaction

• transaction layer

• transaction stateful, see stateful proxy

• transaction user

• transport layer

U

• UA, see user agent

• UAC, see user agent client

• UAC core

• UAS, see user agent server

• UAS core

• upstream

• URI

• URL-encoded

• user agent

• user agent client

• user agent server

V

W

X

Y

Z