<文档标题>Fanvil Technology Co., LtdHQ Add: Level 3, Block A, Gaoxinqi Building, Anhua Industrial Park, Qianjin 1 Road, 35th District, Bao'An, Shenzhen, 518101 P.R. ChinaTel: +86-755-2640-2199 Fax: +86-755-2640-2618 Email: sales@fanvil.com support@fanvil.com Beijing Tel:+86-10-5753-6809Suzhou Tel: +86-512-6592-0605 SEA Tel: +60-3-512-21997Or, in attended transfer mode (Method 1), user can start a conference before transferring and hangup the call any time to complete the call transfer.6.1.4 Check Call Connection QualityAs mentioned in 6.1 Making Phone Calls, when the device is in talking mode, the device willperiodically check the call connection quality by measuring the delay, jitter, and lost rate of the audiotransmission and reflect the quality on the screen. This gives user visualized information about thecall quality and user may decide whether to use alternative way to make a call when the connectionquality is not good enough.– Good– Average– Poor– Bad / Connection Lost6.2 Using PhonebookUser can save contacts‟ information in the phonebook and dial the contact‟s phone number(s) fromthe phonebook. To open the phonebook, user can press soft-menu button [Phonebook] in thedefault standby screen or talking mode screen.By default the phonebook is empty, user may add contact(s) into the phonebook manually or fromcall logs or the cloud phonebook which will be addressed in the next section.NOTICE! The device can save up to total 500 contact records among all user accounts. Thereis no limit on the number of contacts of a single user account.Figure 49 - Phonebook is Empty