SIP SettingsTo use the unit as a SIP extension of the PBX, the unitmust be registered as a SIP extension through PBXprogramming, the "Operation Mode" setting must beset to "IP-PBX" (see page 25), and the followingsettings must be set to match the settings of the PBX.Consult your system administrator for the appropriatesettings. Refer to the PBX documentation to register theunit as a SIP extension.1. Press [MENU].2. Select "Protocol Settings", then pressSELECT.3. Select "SIP Ext. No.", then pressSELECT .4. Enter the unit’s extension number (max. 32 digits),then pressSAVE .5. Select "SIP Password", then pressSELECT .6. Enter the password (max. 32 characters), thenpress [ENTER].• PressCHAR to switch between numeric andalphabet entry modes.• Press [ ] to change between uppercase andlowercase character entry.• See page 36 and page 38 for information onentering characters.7. Select "SIP User Domain Name", then pressSELECT.8. Enter the IP address of the PBX, then pressSAVE.9. Select "SIP Proxy Server IP Address", thenpressSELECT .10. Enter the IP address of the PBX, then pressSAVE.11. Select "SIP Registrar IP Address", thenpressSELECT .12. Enter the IP address of the PBX, then pressSAVE.13. Press [MENU].Note• If this setting is changed, the unit must berestarted before the new setting becomeseffective (see page 43).IP Line Operation ModeWhether IP calls are made and received using IP-PBXmode or peer to peer mode is determined bythe "Operation Mode" setting.1. Press [MENU].2. Select "Operation Mode", then pressSELECT .3. Select the desired setting.• "IP-PBX": The unit can make and receive IPcalls as a SIP extension of the PBX. (This is thedefault setting.)• "Peer to Peer": Peer to peer IP calls arepossible. To make a call, the other party’s IPaddress is specified.4. PressSAVE .5. Press [MENU].Note• If this setting is changed, the unit must berestarted before the new setting becomeseffective (see page 43).Document Version 2008/10 Operating Instructions 25Preparation