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Beginner

SIP Phone can't register to CME

Dear NetPro gurus,

My clients 7945G SIP Phones managed to get the DN from the CME Router, however, it is stuck on "registering" stage and when i do the debug tftp packets & debug tftp events, it always say it can't find the .tlv file.

I have attached my configs and debug in the attached file.

Cheers,

Hunt

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8 REPLIES 8
Highlighted
Hall of Fame Master

SIP Phone can't register to CME

Do do note use SIP with CME.

Convert to SCCP and it will work fine.

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VIP Mentor

SIP Phone can't register to CME

Has this phone previously register to a CUCM cluster before? It looks like the phone has downloaded both ITL files and CTL files. You will need to erase those files or do a factory reset

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Beginner

SIP Phone can't register to CME

I did a factory reset by holding down the # button followed by 1 2 3 4 5 6 7 8 9 * 0 #, the phone reboots but gets the SIP Phone image again.

THe phone may have registered to CUCM before.  How can i erase both ITL and CTL and let it starts from beginning?

Highlighted
Hall of Fame Master

Re: SIP Phone can't register to CME

In cme config, specity an SCCP load.

Then do the atotal lternate sequence 3491672850*#

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Beginner

Re: SIP Phone can't register to CME

THanks Paolo.  I will give that a try tomorrow.

Just a side question, so SIP Phones can't register with CME?

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VIP Mentor

Re: SIP Phone can't register to CME

Hunt Lee,

SIP phones can register with CCME they just dont work as good as SCCP phones. If you set up your system correctly your SIP phone should register

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Beginner

Re: SIP Phone can't register to CME

Hi Aokaniawon,

So what could i be missing that stop the SIP phones from working? My clients really want to use SIP.  Do you have any ideas?

Would greatly appreciated any help you can provided.

Cheers,

Hunt

Highlighted
VIP Mentor

SIP Phone can't register to CME

Since you did a factory reset, what do you get when the phone attempts to register..

can you plug the phone in and send a

'debug tftp events' and

sh telephony-service tftp-bindings

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