Siemens gigaset c475 ip User Manual

Making calls with VoIP and the fixed line network

Gigaset C470-475 IP / EN for IM-Ost / A31008-xxxx-xxxx-x-xxxx / telephony.fm / 18.12.07

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You can also dial an IP address instead of a phone number using VoIP.

¤

Press the star key 

* to separate the sections of the IP address 

(e.g. 149*246*122*28).

¤

If necessary press the hash 

# key to attach the SIP port number of the person you are 

calling to the IP address (e.g. 149*246*122*28#5060).

You cannot dial IP addresses using a line suffix.

You can cancel the dialling operation with the end call key 

a.

You can use the Web configurator to block certain numbers or to define which of your 

numbers (fixed line network, VoIP) should be used to call specific numbers (

, 

see page 149).
If you enter a number that has a defined dialling plan, the call will be made via the line 

defined in the dialling plan – regardless of whether the call key is pressed briefly or pressed 

and held. Any automatic area code will not be prefixed to the number. 

Dialling plans for emergency numbers (e.g. the local emergency service number) are fac-

tory-set for certain countries. Emergency calls are then always made via the fixed line net-

work. 
You cannot delete or deactivate these dialling plans. However, you can change the connec-

tion through which each emergency number should be called (e.g. if the phone is not con-

nected to the fixed line network). You must make sure that the VoIP provider for the 

selected connection supports emergency calls. 
If your phone does not have default dialling plans for emergency calls, you should define 

the rules yourself (page 149). Assign them to a connection that you know supports emer-

gency calls. Emergency calls are always supported by fixed line networks. 
Please note: If no rules are defined for emergency numbers and you have programmed an 

automatic local area code (page 148), the code will be prefixed to emergency numbers as 

soon as they are dialled via a VoIP connection. 

a

Press the end call key.

Emergency numbers cannot be dialled if the keypad lock is activated. Before dialling, press and hold 

the hash key 

#

, to release the keypad lock.