7945G no dial tone

[S Sadiq]

7945G cisco phone not working it doesn't have tone

[Brandon Buffin]

Is it registered? What do you see on the screen? Are other phone working? CUCM or CME?

Brandon

[S Sadiq]

Dear Brandon,

Phone is been registered to cucm,can u give me  how can I check the port status of phone at CLI of gateway.do I have to check the phone console logs message ?

[Brandon Buffin]

What do you see on the screen? Is there a DN assigned? No DN assigned would cause no dial tone.

[S Sadiq]

SEP... 

DN has been assigned 

[S Sadiq]

Hi Brandon,

Did POST test and later found that port was inactive so activated the port and started working !

[Ratheesh Kumar]

Hi Sadiq

Try factory reset the phones. Procedures are below 

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Step 1	Unplug the power cable from the phone and then plug it back in. The phone begins the power-up cycle.
Step 2	While the phone is powering up, and before the Speaker button flashes on and off, press and hold #. Continue to hold # until each line button flashes on and off in sequence in orange (for the Cisco Unified IP Phone 7975G, 7971G-GE and 7970G) or amber (for the Cisco Unified IP Phone 7965G and 7945G).
Step 3	Release # and press 123456789*0#. You can press a key twice in a row, but if you press the keys out of sequence, the factory reset does not take place. After you press these keys, the line buttons on the phone flash orange and then green (for the Cisco Unified IP Phone 7975G, 7971G-GE and 7970G) or red (for the Cisco Unified IP Phone 7965G and 7945G), and the phone goes through the factory reset process. This process can take several minutes. Do not power down the phone until it completes the factory reset process, and the main screen displays.

[Ratheesh Kumar]

also please check this link

http://www.cisco.com/c/en/us/support/docs/voice/h323/22372-no-dialtone.html

[Ratheesh Kumar]

Please check this as well

Cradle Clip

The phones are designed with a reversible clip in the handset cradle area. The clip is used with the tab out when the phone is wall-mounted. Check to see whether the cradle handset clip is in the wall-mounted position (with plastic tab that protrude upward). If the phone is on a desktop, slide the clip upward to remove it, rotate one 180 degrees, and slide back in so that the tab is hidden.

This tab can interfere with the handset as it is replaced on the base (in the cradle), which causes the hookswitch to remain in the up position. When the handset is lifted later in an attempt to initiate a new call or answer one, the hookswitch is not activated. If you answer a call, the phone continues to ring; if you place a call, no dial tone occurs.

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-ip-phone-7900-series/45283-hook-switch.html