Network Address Port Translation (Napt) - NEC SL1100 Networking Manual

NEC SL1100
5.7
5.8
5.9
Networking Manual

Network Address Port Translation (NAPT)

NEC SL1100 SIP trunk can pass through a NAPT router. The related system
data is
Program 10-12-06 : CPU-B1 Network Setup
Program 10-12-07 : CPU-B1 Network Setup
set with a dynamic router IP address).
Incorrect settings with these two programs can cause one-way audio
problems.
The WAN global IP is set in the system data by the user or automatically using
the NAT traversal feature (UPnP). The related system data is
–
Setup UPnP Mode
(polling timer).
Quality of Service (QoS)
NEC SL1100 SIP trunks support Type of Service (ToS) (
, protocol type = 6 (SIP Trunk).
Setup
Registration
5.9.1 Registration Process
When the NEC SL1100 system registers its own IDs with an external
SIP server, the following system data are sent:
Register ID # User ID
Register ID 0 10-36-02
Register ID 1 10-36-02
: 10-36-02
:
Register ID 31 10-36-02
The NEC SL1100 sends the REGISTER Message when the system
starts up, register timer expires, CPU LAN links and recover timer
expires.
5.9.2 Registration Recover Process
The NEC SL1100 has a registration recovery process for registration
failure. When a registration fails, the NEC SL1100 sets an internal
recover timer. When the timer expires, the NEC SL1100 sends a
REGISTER message per register ID again.
(On/Off) and
10-37-02 : UPnP Setup
Authentication
ID
10-36-03
10-36-03
10-36-03
10-36-03
–
NAPT Router (On/Off)
–
NAPT Router IP Address
10-37-01 : UPnP
–
UPnP Interval
Program 84-10 : ToS
Authentication
Password
10-36-04
10-36-04
10-36-04
10-36-04
Issue 6.0
and
(do not
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