Phone Registration Error - VPN Not Configured

[Networks LSE]

Hi

At a remote site currently have deployed cisco 7940, these are being replaced with 7942, however currently getting registration rejected and error on phone VPN Not connected. CUCM version 8.5

Any one any ideas? 

Thanks in Advance

Nic

[DaveX4285_2]

Phone VPN Not connection is a status message you will see if you are not using Phone VPN.

Have you built the new phones as 7942s or are they still 7940s in CUCM.

[Networks LSE]

Hi Dave,

In CUCM adding the new phones as 7942 SCCP, once all the new phones are working was going to delte the 7940's.

Have tried factory reset, delteting the ITL files.  As phones not infront of me do not know yet out the box was the load file is, were trying to load SCCP42.9-2-1S

Cheers

[DaveX4285_2]

Are there any other status messages on the phones? Configuring IP, Registration Rejected? Are they getting an IP address and the correct TFTP server according to Network Configuration on the phone?

Are these 7942 brand new out of the box?

[Anju Josua]

I am having the same issue here

is there any solution?

i installed CM 8.5.1 and try to add 7962 from other site

i use the latest 7962 firmware 9-2-3, and get the same error

"vpn not configured"

[Networks LSE]

Hi

Found the issue was Skinny Version 2 no supported via juniper firewall.

unset alg for SCCP resolved the issue.

unset alg sccp enable

Regards

Nic

[Anju Josua]

Hi,

It works

Thank you

[Najeeb Mohammad]

Hi,

This worked for me also.

Thanks

[mikehammonds]

I am having the same problem, this solution is if you have Juniper SRX firewalls, it does not apply to Juniper EX switches.

[Purna Wijenayaka]

Hi ,

Are you using NAT at the firewall or are you using public IPs for the phones ?

Please advice ,

Purna

[Anas Abueideh]

hi

did you register the phones at HQ before you install at remote sites?

HTH
Anas

Sent from Cisco Technical Support Android App

[mikehammonds]

I can register the phones with the CM server locally, the issue happens when I move the phone to a remote site. What are the required RTP range of ports for audio traffic? All my phones have private IPs via DHCP server.

[Purna Wijenayaka]

hi ,

Audio UDP : 16384 - 32767

but you need to enable signaling as well SIP 5060 , SCCP 2000

[Purna Wijenayaka]

if it is a cisco firewall ( dont know about others ) you can monitor you communication being blocked or not and the ports being blocked by the FW , in the monitoring option availble with the cisco FW ,

I think this is a standard feature with any FW in the market,