02-06-2008 01:15 AM - edited 03-15-2019 08:38 AM
Hi,
Is it possible to encrypt communication throught 2 IP Phone interconnect with a CME ?
My IP Phones are 7906 and 7911.
Thanks in advance
Olivier
02-12-2008 09:28 AM
CME 4.2 supports this feature.
device-security-mode
To set the security mode for SCCP signaling for devices communicating with the Cisco Unified CME router globally or per ephone, use the device-security-mode command in telephony-service or ephone configuration mode.
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmeauth.html
02-15-2008 02:32 AM
I'm in CME 4.2 with 7942, 7911 and 7906 IP Phone and when I put the
ephone xxx
device-security-mode encrypted
command then the IP Phone could not register on the CME
=> Here is the message on the IP Phone " Registration Rejected : Max Phones ...3
and the one on the CME
Feb 15 19:31:09.091 UTC: %IPPHONE-6-REG_ALARM: 24: Name=SEP001EF7C2BC4D Load= SCCP42.8-3-2S Last=Phone-Reg-Rej
Feb 15 19:31:10.087 UTC: %IPPHONE-6-REG_ALARM: 22: Name=SEP001EF7C2BD1E Load= SCCP42.8-3-2S Last=Reset-Reset
when I remove the device-security-mode encrypted, the IP phone register immedialtly but without sRTP ?
any idea
thanks in advance for your help
Olivier
02-20-2008 03:45 PM
You have to do the steps mentioned in the doc in the other post. It's more then just enter the one command...
Phone Authentication
â¢Configuring the Cisco IOS Certification Authority (required)
â¢Authenticating Certificates for Server Functions (required)
â¢Configuring Telephony-Service Security Parameters (required)
â¢Configuring the CTL Client (required)
â¢Configuring the CAPF Server (required)
Media Encryption
â¢Configuring Secure Calls Between Cisco Unified CMEs Across an H.323 Trunk (required)
â¢Configuring Cisco Unified CME SRTP Fallback for H.323 Dial Peers (optional)
Good luck,
Martin
02-02-2010 06:45 AM
Has anyone found the solution for this ? I'm looking at exactly the same error when "device-security-mode encrypted" in CME7.
Regards.
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