ISDN Phone

Use this screen to control which SIP accounts you use. Each field is described in the following table.

Label
Description
Outgoing Call Use
 
SIP1
Select this if you want the ISDN phone port to use the SIP1 account when it makes calls. If you select both SIP accounts, the ZyXEL Device tries to use SIP2 first.
SIP2
Select this if you want the ISDN phone port to use the SIP2 account when it makes calls. If you select both SIP accounts, the ZyXEL Device tries to use SIP2 first.
Apply
Click this to save your changes and to apply them to the ZyXEL Device.
Cancel
Click this to set every field in this screen to its last-saved value.