Welltech SIPPBX 6200 V.3.1.1 - Manual (Page 40)

Welltech Technology Co., Ltd.
SIPPBX 6200S, 6200GS, 6200N Release 3.1.1
User Guide
- 40 -
at T1 and doubles until reaches T2. If a provisional response is received,
retransmission continue but at an interval of T2. (Default Value: 4000ms) **.
• RetransmissionT4 (msec.): T4 represents the amount of time the network
takes to clear message between client and server transactions which were
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) **.
• Cancel General No Response Timer (msec.): When sending a CANCEL
request on a General transaction, the User Agent waits for cancel
GeneralNoResponseTimer milliseconds before timeout termination if there is
no response for the cancelled transaction (Default Value: 10000ms) **.
• General Request Timeout Timer (msec.): After sending a General request,
the User Agent waits for a final response generalRequestTimeoutTimer
milliseconds before timeout termination (in this time the User Agent
retransmits the request every T1, 2*T1,…T2,…milliseconds) **.
• Proxy 2xx Rcvd Timer (msec.): 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 for proxy2xxRcvdTimer before the transaction terminates.
(default: 10000 ms) **.
• Proxy 2xx Sent Timer (msec.): A successful server INVITE transaction of a
Proxy server includes only the INVITE request and the 2xx response. (The
ACK is not part of the transaction). After sending the 2xx response the
SIPPBX 6200x will wait for proxy2xxSentTimer before the transaction will
terminate. (default: 8000 ms) **.
• Use Domain for Auth: Send “Domain” in 401 or 407 for authentication or not.
• General Guard Time: The general guard time for internal purpose only.
• Nonce Valid Period: The max valid time for a nonce. Once time out, SIPPBX
6200x will issue a new nonce for authentication. Set it to 0 will cause SIPPBX
6200x to generate new nonce for each call or register.
• Valid Period Auth Mode: During the nonce valid period, if a subscriber sends
response on the “register”/“invite” message or not.
- None : User agent doesn’t need to send MD response in register invite
message.
- MD : User agent should send MD response over the current nonce. Or a
new nonce will be sent by SIPPBX 6200x.
• Message Pool Page Size: Used to hold and process all incoming and
outgoing calls in the form of encoded message or message objects. It is
recommended that you configure the page size to the average message size
your system is expected to manage.
• General Pool Page Size: Used by SIP Stack objects, such as call-legs and
transactions, to store the internal fields. For example, the call-leg object will
store the To, Form and Call-ID headers and the local and remote contact
addresses on the general pool pages. The general pool is also used for other
activates that demand memory allocation.
• Send Receive Buffer Size: The buffer size used by the SIP Stack for receiving
and sending SIP messages.
• Memory Pages: Number of memory pages allocated.
• Support Video: Support Video or not. Enable video will greatly decrease the
number of concurrent channels and bandwidth.
• RTP Resource Timeout: The maximum time to wait for RTP resources