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Welltech WellBG 5800 V.1.3 User Manual

Page 17

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Welltech Computer Co., Ltd.

Boarder Gateway 5800

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Retransmission T1: T1 determines several timers as defined

in RFC3261. For example, when an unreliable transport pro-
tocol is used, a Client Invite transaction retransmits requests
at an interval that start at T1 seconds and doubles after every
retransmission. A Client General transaction retransmits re-
quests at an interval that starts at T1 and doubles until it
reaches T2. (Default Value: 500ms) **

Retransmission T2: Determines the maximum retransmission

interval as defined in RFC3261. For example, when an unre-
liable transport protocol is used, general requests are re-
transmitted at an interval which starts at T1 and doubles until
reaches T2. If a provisional response is received, retrans-
mission continue but at an interval of T2. (Default Value:
4000ms) **

Retransmission T4:

T4 represents the amount of time the

network takes to clear message between client and server
transactions as defined in RFC3261. For example, when
working with an unreliable transport protocol, T4 determines
the time that UAS waits after receiving an ACK message and
before terminating the transaction. (Default Value: 5000) **

General Request Timeout Timer: After sending a General

request, the User Agent waits for a final response general-
RequestTimeoutTimer milliseconds before timeout termina-
tion (in this time the User Agent retransmits the request every
T1, 2*T1,…T2,…milliseconds)**

Cancel General No Response Timer: When sending a

CANCEL request on a General transaction, the User Agent
waits cancelGeneralNoResponseTimer milliseconds before
timeout termination if there is no response for the cancelled
transaction(Default Value: 10000ms).**

Processing Queue Size: the maximum length of the proc-

essing queue which holds events such as network events.

Proxy 2xx Sent Timer: A successful server INVITE transac-

tion of a Proxy server includes only the INVITE request and
the 2xx response. (The ACK is not part of the transac-
tion).After sending the 2xx response the Proxy will wait
proxy2xxSentTimer before the transaction will terminate.
(default: 8000 ms)**

Proxy 2xx Rcvd Timer: A successful client INVITE transaction

of a Proxy server includes only the INVITE request and the
2xx response. (The ACK is not part of the transaction.)After
receiving the 2xx response, the Proxy will wait