T o o l sCopyright © 2006 Nokia. All rights reserved. 77Select Menu > Tools > Settings >Connection > Packet data andfrom the following options:Packet data conn. — If you selectWhen available and you are in anetwork that supports packetdata, the phone registers to theGPRS network and short messagesare sent using GPRS. Also, startingan active packet data connection,for example, to send and receive e-mail, is quicker. If you select Whenneeded, the phone uses a packetdata connection only if you startan application or function thatneeds it. The GPRS connection canbe closed when it is not needed byany application.If there is no GPRS coverage andyou have chosen When available,the phone periodically tries toestablish a packet dataconnection.Access point — The access pointname is needed when you want touse your phone as a packet datamodem to your computer.SIP settingsSIP (Session Initiation Protocol)profiles include the settings forcommunications sessions usingSIP protocols. To view, create, andedit SIP profiles, select Menu >Tools > Settings > Connection >SIP settings.Data callThe Data call settings affect allaccess points that use a GSM datacall.Select Menu > Tools > Settings >Connection > Data call and fromthe following options:Online time — to set the data callto disconnect automatically aftera time-out if there is no activity.To enter a time-out, select Userdefined, and enter the time inminutes. If you select Unlimited,the data call is not disconnectedautomatically.ConfigurationsCertain functions, such as Webbrowsing and multimediamessaging, may requireconfiguration settings. You mayreceive the settings from yourservice provider. See“Configuration settings” p. 22.To view the list of configurationssaved to your phone, select Menu> Tools > Settings > Connection >Configurations. To delete aconfiguration, scroll to theconfiguration, press the scroll key,and select Delete.Date and timeTo define the date and time usedin your phone, and change the