Cisco ISR 4451 as CME and activation of new Flex CME subscription

[adeebtaqui]

Greetings,

Kindly advise how to get new 7821 and 8851 ip phones registered on ISR 4451 being deployed as CME using below flex subscription. Smart license have been activated but still phones not being registered.

	IP phone license 12 month subscription
A-FLEX-3	Collaboration Flex Plan 3.0	EA	1
SVS-FLEX-SUPT-BAS	Basic Support for Flex Plan	EA	1
A-FLEX-STD-CUBE	CUBE Standard Trunk Session License	EA	5
A-FLEX-EP-CME	Communications Manager Express (CME)	EA	46

Account Information:
Smart Account: xxxx As of Aug 02 13:00:28 2023 KSA
Virtual Account: Axxxxxxl

License Usage:
License Entitlement Tag Count Status
-----------------------------------------------------------------------------
uck9 (ISR_4400_UnifiedCommun...) 1 IN USE
CME_EP (CME_EP) 41 IN USE

[b.winter]

AFAIK, phones not registering has nothing to do with the licensing. You are taking the wrong assumptions here.
You need to check the debugs, logs, ...
There are sooo many old posts about phone registration problems on CME, so you'd better check them out.

[Roger Kallberg]

As @b.winter wrote the licensing has no relevance to your registration issue. If you post your configuration we might be able to help identify any problem(s) in your setup.

[adeebtaqui]

Hi @Roger Kallberg , pls find attached the config done

[b.winter]

There are not even any registration requests visible.
Are the phones even getting an IP address?

[Nithin Eluvathingal]

Can you remove auto register from the voice register global as you already created voice register dn's and pools.

[adeebtaqui]

removed auto but still no phone registration. Phone ip pingalble from cme router and one phone getting error of reg send failure

[Nithin Eluvathingal]

After removing, you need to issue create profile.

Can you share the logs from CME.

show voice register pool attempted-registrations

show voice register statistics 

[adeebtaqui]

Below is the output. I see 30 registration requests but under pool its 0. Is this because of new flex licensing which may need to be activated in addition to active license of cme

License Usage:
License Entitlement Tag Count Status
-----------------------------------------------------------------------------
uck9 (ISR_4400_UnifiedCommun...) 1 IN USE
CME_EP (CME_EP) 43 IN USE

show voice register pool attempted-registrations
Phones that have attempted registrations and have failed: NONE

===

show voice register statistics
Global statistics
Active registrations : 0

Total SIP phones registered: 0
Total Registration Statistics
Registration requests : 31
Registration success : 0
Registration failed : 0
unRegister requests : 0
unRegister success : 0
unRegister failed : 0
Auto-Register requests : 0
Attempts to register
after last unregister : 31
Last register request time : *10:06:56.167 KSA Mon Aug 7 2023
Last unregister request time :
Register success time :
Unregister success time :

Register pool 3 statistics
Active registrations : 0

Total SIP phones registered: 0
Total Registration Statistics
Registration requests : 0
Registration success : 0
Registration failed : 0
unRegister requests : 0
unRegister success : 0
unRegister failed : 0
Auto-Register requests : 0
Attempts to register
after last unregister : 0
Last register request time :
Last unregister request time :
Register success time :
Unregister success time :

Reason for unregistered state:
No registration request since last reboot/unregister

Register pool 34 statistics
Active registrations : 0

Total SIP phones registered: 0
Total Registration Statistics
Registration requests : 0
Registration success : 0
Registration failed : 0
unRegister requests : 0
unRegister success : 0
unRegister failed : 0
Auto-Register requests : 0
Attempts to register
after last unregister : 0
Last register request time :
Last unregister request time :
Register success time :
Unregister success time :

Reason for unregistered state:
No registration request since last reboot/unregister

[b.winter]

How to bind the interface:

voice service voip
 sip
  bind control source-interface [Interface]
  bind media source-interface [Interface]

[adeebtaqui]

this config I already have but still my phones not getting registered

[Roger Kallberg]

You are AFAIKS missing the sip-ua configuration. See this document for details on how to setup CME. Cisco Unified Communications Manager Express System Administrator Guide 

[adeebtaqui]

yes getting ip from dhcp of router

[b.winter]

Is it from the correct IP range?!
Has the phone the correct TFTP-server address, or has it a TFTP-address at all?
What do the debugs say? Do you see any SIP registration events on the CME router? (I already know the next question: "Which debugs should I use?")
Can you ping the phones, from the correct interface?

Don't let us pull everything out of your nose!

If you are installing CME, you should also be able to troubleshoot it.

[adeebtaqui]

tftp-path flash: is configured under voice register global

phones ip are pingable from router

on one phone I am getting error of reg send failure