Cortelco 2757 - Manuals

17 7. To reboot the 2757, press ‘Down’ to move to ’21. Reboot System’, and press ‘Select’. ‘Rebooting’ will appear on the LCD screen. After the reboot is completed, the 2757 is ready for use. 2.4 Network Setup (Web Configuration) You can also configure the network by using a web browser. In order to...

18 3. Press ‘Up’ or ‘Down’ until ‘5. Model Information’ is selected, then press ‘Select’. 4. Press ‘Up’ or ‘Down’ until ‘4. IP Address is highlighted. Make a note of the IP address, and then press ‘Exit’ three times to return to the main menu. 2.4.2 Web Interface Network Configuration 1. Use a web b...

21 2.5 SIP Server Information Setup After the network setup is completed, the SIP server information must be entered. 1. Press ‘Menu’ 2. Press ‘Up’ or ‘Down’ until ‘3. Settings’ is selected, then press ‘Select’. 3. Press ‘Up’ or ‘Down’ until ‘4. System Configuration’ is selected, then press ‘Select’...

27 2.7 Accepting and Making Phone Calls After completing the network and SIP settings, you can use the 2757 to make and accept phone calls. 2.7.1 Accepting phone calls Before you can receive phone calls, your phone must be registered to a SIP server. You will see the message below on the LCD screen ...

29 The call is now on hold. You will hear dial tone again. The remote party will hear music if the phone or server is configured to deliver it. There are two types of call transfer – Attended and Blind. In an Attended transfer the party initiating the transfer remains connected until the transfer is...

30 2.7.2.1.2 Blind Transfer To perform a blind transfer, dial the asterisk key ‘ * ’ after dialing the phone number for the transfer. You will see the following message displayed on the LCD screen: At this point, the call will be transferred. If a blind transfer fails, the call cannot be retrieved. ...

33 2.8 Caller ID on Call Waiting The 2757 supports Caller ID on Call Waiting. With this service, the 2757 will notify you if you receive a second call while you are on the phone. It will also display the number of the second call. Please note that this service must be provided by your ISP or VoIP PB...

35 2.9.1 Missed Calls All unanswered calls will be listed here. You can use ‘Up’ and ‘Down’ to move in this list. Press ‘Dial’ to call the number selected, press ‘Delete’ to delete a selected entry, or press ‘Exit’ to return to previous menu. 2.9.2 Received Calls All accepted phone calls are listed ...

36 2.10 Call Rejection (DND) Do Not Disturb (DND) can be used to avoid phone calls. To activate DND, press ‘DND’. The icon will be displayed on the LCD screen. When DND is activated, callers will hear busy tone or a voice mail message if voice mail is available. A DND forward number may also be set ...

37 2.11.2 Headset To use a headset, insert the headset plug into the headset jack of the 2757 as shown below. After the headset is connected, press ‘HEADSET’ to make and receive calls. 3 Speed Dial & Advanced Phone Configuration 3.1 Speed Dial The 2757 has 5 speed dial buttons. A phone number ma...

38 2. Numbers can now be entered in the spaces for Speed Dial 1 – 5. Only numbers may be placed in these spaces. To save the settings, press ‘Submit’ on the bottom of the webpage. 3.2 Call Forwarding The 2757 supports three methods of call forwarding. These numbers may also be entered on this web pa...

40 3.3.12 Set Time Zone The 2757 supports time zones based on GMT. 3.3.13 NTP Server Address The 2757 keeps time based on signals from a Network Time Protocol (NTP) server. Enter a valid NTP server address here. 3.4 Entry of Call Forward numbers from phone Call forwarding numbers can also be set fro...

41 3. Press ‘Down’ to highlight the desired type of call forward. Press ‘Select’. 4. Enter the number using the keypad. Press ‘Save’ to save changes. Press ‘Clear’ to erase a number, or press ‘Cancel’ to keep the original number unchanged. 3.5 Phone Book Management 3.5.1 Web Interface The web interf...

42 2. Phone book entries will be displayed on this page, and new names and numbers may be entered. After entering the number and the name, press ‘Add’ to save the entry. To delete an existing entry, enter the phone number in the ‘Number’ field, and then press ‘Delete’. 3.5.2 Phone Interface Existing...

44 6. To delete all phone book entries press ‘DelAll’ when the phone book entries are displayed. You will be prompted to press 1 or 2 key (1 for YES and 2 for NO). 3.6 Browse System Information System information (IP address, model information, firmware version…etc.) can be displayed using either th...

47 3.7 Change Display Language The default language of the 2757 is English. However, it can be changed to Chinese. 1. Press ‘Menu’ 2. Press ‘Up’ or ‘Down’ until ‘3. Settings’ is selected, then press ‘Select’. 3. ‘1. Language’ should be selected when this menu is entered. If not, use ‘Up’ or ‘Down’ t...

48 4. All available languages will be displayed here. A ‘V’ sign will appear on the currently selected language. Use ‘Up’ or ‘Down’ to select the desired language, and press ‘Select’. Press ‘Exit’ to leave this menu without making any changes. 3.8 Change Ringer Type Ring tones can be changed from th...

49 3. Press ‘Up’ or ‘Down’ until ‘2. Ring Type’ is selected, then press ‘Select’. 4. All available ring tones will be listed here. Use ‘Up’, ‘Down’, and ‘Select’ key to choose a ring tone. Press ‘Exit’ to return to the previous menu after making a selection. A ‘V’ will appear on the currently select...

51 3.10 Reboot the IP Phone 3.10.1 Phone Interface 1. Press ‘Menu’ 2. Press ‘Up’ or ‘Down’ until ‘3. Settings’ is selected, then press ‘Select’. 3. Press ‘Up’ or ‘Down’ until ‘4. System Configuration’ is selected, then press ‘Select’.

53 2. Click the ‘System Restart’ tab, then click the ‘RESTART’ button. The web page will display ‘Phone is restarting !!’ The 2757 will be ready again in approximately 1 minute. 3.11 Factory Reset All stored settings can be erased by resetting the 2757 to factory defaults. 3.11.1 Phone Interface 1. ...

55 2. Click ‘Configuration commit / Reset’ tab. Then click ‘RESET’ button to reset to defaults. To complete the reset, click ‘COMMIT’ button and reboot the phone. 3.12 Change Password for the Web Interface The web login password can be changed. Connect to the 2757 with the web interface then follow ...

56 4 Troubleshooting If your 2757 is not working properly, please check this troubleshooting checklist. Scenario / Problem Solution Nothing is displayed on LCD screen Is the AC adapter plugged into an electrical outlet? Is the AC adapter connected to the 2757? If using PoE, check the PoE switch and ...

57 5 Firmware Update 5.1 Upgrade Procedure The system software used by the 2757 can be updated when a newer version is available. Please go to www.cortelco.com to check for a new version of firmware. The following information will be needed to upgrade: • TFTP/FTP server address • Image file name • u...

58 2. Enter the upgrade server (TFTP or FTP) address. Select the server type (TFTP or FTP). Enter the upgrade filename, username, and password on this page. Note that TFTP does not require a username or password. Then press ‘SAVE’. After the information is saved, press ‘UPGRADE’, the IP Phone will c...