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New Member

8961 IP Phone constantly requests CTLSEP<MAC>.tlv after factory reset

I have an 8961 IP phone running "sip8961.9-0-0-70dev". When the config is erased (All) the phone resets but constantly asks the TFTP server for CTLSEP<MAC>.tlv. There is no CTL file, nor has there ever been security configured.

How can I stop the phone asking for CTLSEP<MAC>.tlv and get on with downloading its config/firmware upgrade?

Thank-you

-Rob.

  • IP Telephony
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3 REPLIES
VIP Super Bronze

This is part of the

This is part of the Communications Manager Security By Default feature. After the phone boots, obtains an IP address, and the address of a TFTP server, the first files it will ask for are the CTL and the ITL file. This is used to determine if the phone requests a signed configuration file or not.. This is an example of a signed configuration file..Security is enabled by default on cucm 8.0 and above.

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New Member

Hi Ayodeji, thank-you for

Hi Ayodeji, thank-you for your reply. From what I've read in 8961 documentation, though, if there is no CTLSEP<MAC>.tlv file on the TFTP server (Publisher in this case) then it should proceed without security and request the .cnf.xml file. My phone is not doing that - it constantly requests the .tlv file

-Rob

VIP Super Bronze

Yes Rob you are correct if

Yes Rob you are correct if there is no CTL file, then the phone will request an un-signed configuration file. What system are you using? CUCM or ccme? Can you post the full phone logs here..Attach it?

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