Archive for the ‘IP Phones & ATA’s’ Category

I was looking into this customer issue where they upgraded from Call manager 4.x to 7.x and almost all users on 7912 phone lost their speed dials.

I checked the phones and CCMUSER page and found that the dials where there but they are not able to access it.

Created a new Softkey template including “AbbrDial” at “off Hook” mode. Reset the phones and asked them to check.

Customer came back saying they cannot see “AbbrDial” Softkey. All settings in Call manager were fine but for some reason they were not able to see the Abbreviated Dial Softkey.

I checked the firmware for 7912 and it was CP7912080003SCCP070409A.

I decided to upgrade the firmware for 7912 to the latest one CP7912080004SCCP080108A. I loaded the new firmware, restarted TFTP, reset the phones and it all started working fine.

Later I came to know that it’s a kind of a bug that if you upgrade from CCM 4.x to 7.x then your 7912 phones will have issues in AbbrDial Softkey. If you come across this issue, upgrade the firmware and you will be good.

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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, 0×60) for signal
af41 (the MS 6 bits, 34, in ToS, 0×88) for video
default (the MS 6 bits, 0, in ToS, 0×0) 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.

A customer reported an issue with their 7941 phone. The issue was they plugged in a new 7941 all configured at Call manager and it was showing “Error pass Limit” as follows:

This sort of error normally comes when you have one of the following conditions:

  • Too many unassigned directory numbers in Call manager i.e. not assigned to any phone or any extension mobility profile
  • No Extension assigned to the phone
  • The Busy Trigger and maximum calls on the line are not correct (normally you configure max calls: 4 and busy trigger: 2)

For this particular issue I found no extension was assigned to it so I assigned an unassigned DN and the issue was resolved.