Defining Local Communication Ports For Voip; Configuring Call Forwarding Via Voip - Siemens GIGASET A580 User Manual

Web configurator – setting the phone using a PC
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Now select
The setting for the recall key applies to all registered handsets.

Defining local communication ports for VoIP

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Open the following Web page:
Area: Listen ports for VoIP connections
Specify which local ports the telephone is to use for VoIP telephony. The ports
must not be used by any other subscriber in the LAN.
SIP port
Specify the local communication port that the phone should use to send and
receive signalling data. Specify a number between 1024 and 49152. The
default port number for SIP signalling is 5060.
RTP port
Specify the local communication port that the phone should use to receive
voice data. Enter an even number between 1024 and 49152. The port
number must not be the same as the port number in the
enter an odd number, the next lowest even number will be selected auto-
matically (e.g. if you enter 5003, then 5002 is set automatically). The
default port number for voice transmission is 5004.
Use random ports
Select Yes, if you do not want the phone to use fixed ports for
port, but rather to use any free ports.
RTP
The use of random ports makes sense if you want several phones to be oper-
ated on the same router with NAT. The phones must then use different ports
so that the router's NAT is only able to forward incoming calls and voice data
to one (the intended) phone.
If you select No, the phone will use the ports specified in
port.
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Now select

Configuring call forwarding via VoIP

If you are toggling calls via VoIP connections, you can connect the two external
callers (provider-dependent). You can configure settings for this type of call for-
warding.
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Open the following Web page:
Area: Call Transfer
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Make your settings for call forwarding via VoIP in the following fields:
Transfer Call by On-Hook
If you select Yes, the external parties you are toggling between will be con-
nected when you press the end call key a. Your connections with the callers
will be terminated.
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to save your settings.
Set
to save your settings.
Set
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Settings Telephony
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Settings Telephony
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Advanced Settings.
SIP port field. If you
SIP port and
SIP port and RTP
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Advanced Settings.