Scenario#33 – Phones not registering CUCME

Interesting case today. I had a call from customer saying they had a power cut and when the power was restored all their phones went into ‘Registering’ status.

I initially thought it could be a network issue from switches to CUCME gateway as the config was looking fine to me. I did a show ephone summary and found all of them in ‘Unregistered’ status. Nothing changed really, the config was all ok and these phones were all working fine few minutes before. So what has gone wrong?

I started going through the config if anything has changed but nothing changed. Then I did show telephony service and found below:

=====================
Version 8.1
Max phoneload sccp version 17
Max dspfarm sccp version 18
Cisco Unified Communications Manager Express
For on-line documentation please see:
http://www.cisco.com/en/US/products/sw/voicesw/ps4625/tsd_products_support_series_home.html

protocol mode default
ip source-address 172.16.49.250 port 2000
ip qos dscp:
ef (the MS 6 bits, 46, in ToS, 0xB8) for media
cs3 (the MS 6 bits, 24, in ToS, 0x60) for signal
af41 (the MS 6 bits, 34, in ToS, 0x88) for video
default (the MS 6 bits, 0, in ToS, 0x0) for serviceservice directed-pickup
no auto-reg-ephone
load 7937 apps37sccp.1-3-4-0
load 7942 SCCP42.8-5-4S
max-ephones 25
max-dn 200
max-conferences 8 gain -6
dspfarm units 0
dspfarm transcode sessions 0
conference software
.
.
.
.
.
.
.
web admin customer name Customer
edit DN through Web:  enabled.
edit TIME through web:  disabled.
Log (table parameters):
max-size: 150
retain-timer: 15
create cnf-files version-stamp 7960 Jul 29 2011 15:25:03
transfer-system full-consult
transfer-digit-collect new-call
local directory service: enabled.
Extension-assigner tag-type ephone-tag.
shutdown

Did you guys see what was wrong?

Somehow the telephony service went into shutdown state. I did a no shut on telephony service and they all start registering.

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