Grandstream Networks GSC3570 User Manual page 58

Use Random Port
Keep-alive Interval
Use NAT IP
STUN Server
Test Password
Strength
Settings → External Service
Order
Account
System Identification
System Number
Door 1 Name
Door 1 Access
Password
Door 2 Name
Door 2 Access
Password
When set to "Yes", this parameter will force random generation of both the
local SIP and RTP ports. This is usually necessary when multiple GSC3570s
are behind the same full cone NAT. The default setting is "Yes"
Note: This parameter must be set to "No" for Direct IP Calling to work.
Specifies how often the GSC3570 sends a blank UDP packet to the SIP
server to keep the "ping hole" on the NAT router to open. The default setting
is 20 seconds. The valid range is from 10 to 160.
The NAT IP address used in SIP/SDP messages. This field is blank at the
default settings. It should ONLY be used if it is required by your ITSP.
The IP address or Domain name of the STUN server.
STUN resolution results are displayed in the STATUS page of the Web GUI.
Only non-symmetric NAT routers work with STUN.
Only allow password with these constraints to ensure better security:
The password must be more than 9 characters/digits and must fulfill at
least 3 options among 4 options below:
1) Numeric (0-9)
2) Capital letters (A-Z)
3) Lower case (a-z)
4) Special characters (!, @, #, $, %, ^, &, *, (, ), etc.)
Default setting is "No".
Displays the order of the service.
Specifies the account on which the service will be applied.
Specifies the name to identify the service.
Specifies the system number, in case the service type option is set to GDS,
the system number is the SIP user ID configured on GDS37xx, or the IP
address of the GDS37xx itself if it's using IP call.
Specifies the name of door 1.
Determines the access password, in case the service type option is set to
GDS, the access password is the one configured on "Remote PIN to Open
the Door 1" field on GDS37xx settings.
Specifies the name of door 2.
Determines the access password, in case the service type option is set to
GDS, the access password is the one configured on "Remote PIN to Open
the Door 2" field on GDS37xx settings.
GSC3570 User Manual
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