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Gigaset CL750A GO / LUG IE-UK en / A31008-M2723-L101-1-7619 / appendix_legal_GO.fm / 7/24/15
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Service (Customer Care)
Operation behind routers with network address translation
(NAT)
In general, no special telephone or router configuration is required when operating a Gigaset telephone with
NAT router. The configuration settings described in this section are only necessary if you encounter one of the
following problems.
•
No incoming calls are possible via VoIP. Calls to your VoIP phone numbers are not put through.
•
Outgoing calls via VoIP are not connected.
•
A connection is established with the other participant, but you cannot hear them and/or they cannot hear
you.
Changing the port numbers for SIP and RTP on your VoIP phone
¥
Connect to the telephone's web configurator using the PC web browser
Register
Open website
Set-
tings – Telephony
–
Advanced VoIP Settings
Change SIP and RTP port numbers Save settings
Example: Select port numbers that are similar to the standard settings:
¥
Check new settings: Open website
Settings
–
Telephony
–
Connections
. . . the
Status
of the VoIP set-
tings is displayed
¥
Test to see whether the original problem persists. If the problem does persist, carry out the next step.
Setting port forwarding on the router
Details for enabling a port on the router (example):
To enable the router to perform this port forwarding, the DHCP settings of the router must ensure that the
phone is always assigned the same local IP address.
Guarantee Certificate - United Kingdom
Without prejudice to any claim the user (customer) may have in relation to the dealer or retailer, the customer
shall be granted a manufacturer's Guarantee under the conditions set out below:
•
In the case of new devices and their components exhibiting defects resulting from manufacturing and/or
material faults within 24 months of purchase, Gigaset Communications shall, at its own option and free of
charge, either replace the device with another device reflecting the current state of the art, or repair the
said device. In respect of parts subject to wear and tear (including but not limited to, batteries, keypads,
casing), this warranty shall be valid for six months from the date of purchase.
The SIP and RTP port numbers may not be used by any other application or by any other host in the
LAN and should be completely different to the SIP and port numbers that are usually used (and pre-
set in the phone).
SIP port
49060
instead of
5060
RTP port
49004 to 49010
instead of
5004 to 5010
Protocol
Public port
Local port
Local host (IP)
for SIP
UDP
49060
49060
192.168.2.10
for RTP
UDP
49004 – 49010
49004 – 49010
192.168.2.10
Protocol
The protocol used must be
UDP
.
Public port
Port number/port number range on the WAN interface
Local port
The SIP and RTP port numbers set on the phone
Local host (IP)
Local IP address of your phone in the LAN
