Grandstream GXP2130 Administration Guide - Manual (Page 35)

GXP2130/GXP2140/GXP2160
FIRMWARE VERSION 1.0.4.23 GXP2130/GXP2140/GXP2160
ADMINISTRATION GUIDE Page 33 of 81
Reregister Before
Expiration
Specifies the time frequency (in seconds) that the phone sends
re-registration request before the Register Expiration. The default value is 0.
Local SIP Port
Defines the local SIP port used to listen and transmit. The default value is
5060 for Account 1, 5062 for Account 2, 5064 for Account 3, 5066 for Account
4, 5068 for Account 5, 5070 for Account 6. The valid range is from 1 to 65535.
SIP Registration Failure
Retry Wait Time
Specifies the interval to retry registration if the process is failed. The valid
range is 1 to 3600. The default value is 20 seconds.
SIP T1 Timeout
SIP T1 Timeout is an estimate of the round trip time of transactions between a
client and server. If no response is received the timeout is increased, and
request re-transmit retries would continue until a maximum amount of time
define by T2. The default setting is 0.5 seconds.
SIP T2 Timeout
SIP T2 Timeout is the maximum retransmit time of any SIP request messages
(excluding the INVITE message). The re-transmitting and doubling of T1
continues until it reaches the T2 value. The default setting is 4 seconds.
SIP Transport
Determines the network protocol used for the SIP transport. Users can choose
from TCP, UDP and TLS. The default setting is “UDP”.
SIP URI Scheme when
using TLS
Specifies if "sip" or "sips" will be used when TLS/TCP is selected for SIP
Transport. The default setting is "sips".
Use Actual Ephemeral
Port in Contact with
TCP/TLS
This option is used to control the port information in the Via header and Contact
header. If set to No, these port numbers will use the permanent listening port on
the phone. Otherwise, they will use the ephemeral port for the particular
connection. The default setting is “No”.
Remove OBP from route
Configures to remove outbound proxy from route. This is used for the SIP
Extension to notify the SIP server that the device is behind a NAT/Firewall.
The default setting is "No".
Support SIP Instance ID
Defines whether SIP Instance ID is supported or not. The default setting is
"Yes".
SUBSCRIBE for MWI
When set to "Yes", a SUBSCRIBE for Message Waiting Indication will be sent
periodically. The phone supports synchronized and non-synchronized MWI.
The default setting is "No".
SUBSCRIBE for
Registration
When set to "Yes", a SUBSCRIBE for Registration will be sent out periodically.
The default setting is "No".
Enable 100rel
The use of the PRACK (Provisional Acknowledgment) method enables
reliability to SIP provisional responses (1xx series). This is very important in
order to support PSTN internetworking. To invoke a reliable provisional
response, the 100rel tag is appended to the value of the required header of the