Password Recovery Procedures

The following link can be used as a procedure for password recovery:

http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps1831/products_tech_note09186a00801746e6.shtml

Cisco 7965 Stuck at Upgrading Screen

I ran into this issue after factory resetting a Cisco 7965 phones  resulting in it being stuck at the upgrading screen while displaying the MAC address on the bottom left.

Here are a few things that should be checked to resolve this:
DHCP ip helper-address
Phone Load
DHCP Scope

Cisco Unity Express Compatibility Matrix

The following link shows the compatibility of Cisco Unity Express with CUCME, CUCM and Routers:
http://www.cisco.com/en/US/docs/voice_ip_comm/unity_exp/compatibility/cuecomp.htm

This can be used when integrating CUE with CUCM, as an example.

Creating Custom Backgroud Images for IP Phones

The following link explains the process for creating custom background images for Cisco IP phones:
http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7965g_7945g/6_1_3/english/administration/guide/7965cst.html#wp1088046

Hardware Restting a 7900 Series Phone

1. Unplug the power cable from the phone and then plug it back in. The phone begins its power up cycle.
2. While the phone is powering up, and before the Speaker button flashes on and off, press and hold #. Continue to hold # until each line button flashes on and off in sequence in amber.
3. Release # and press 123456789*0#.

ePhone slot is already registered with 00f0.0000.0000

When trying to remove a phone from Communication Manager Express (CME) to receive the following error: ePhone slot is already registered with 00f0.0000.0000

Steps to resolve and remove the phone:
1. Unplug the phone
2. Remove the ephone 1
3. Type, clear ip dhcp bindings
4. Re-create the ephone 1
5. Define the mac-address of the phone
6. Now plug back in the phone.

CUCM Conference Setting Best Practice

It is best practice when configuring CUCM and conferencing that you change the default conference drop setting to "When Conference Controller Leaves".

System > Service Parameters > Select you Publisher > Select "Cisco CallManager" > Search for "Clusterwide Parameters (Feature - Conference)" > Drop Ad Hoc Conference

This setting will drop the conference call when the conference initiator hands up the call. This option will assist in preventing call fraud.

The default option is net to "Never".

Remove DNS Reliance from CUCM

The following is show how to remove DNS reliance from CUCM.

DNS reliance can be removed from CUCM using the CLI, from here you can use the delete dns to remove the DNS server.

Refer to the following link for more information:
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_configuration_example09186a0080a9a0fe.shtml

Initial Installation of a ISDN E1 PRI Card

When install a new ISDN E1 PRI in a router you will need to initialize and configure the card. If this is not done, you will see the card listed in a show version or show inventory but the Serial Interface will not be initialized.

Type the following to initialize the card:

Router(config)# card type e1 [slot/port]

Finding out what version on CUCME you're running

Ever wanted to know what CUCME version you here running? The 'show telephony-service' command is the answer:

UC520#sh telephony-service
CONFIG (Version=7.0(0))
=====================
Version 7.0(0)
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

VoIP Per Call Bandwidth

The following calculation table explains the default voice payload sizes in CUCM or H.323 gateways. For additional calculations with customized values goto: TAC Voice Bandwidth Codec Calculator



Bandwidth MP or FRF.12 (Kbps) = Frame Relay
Bandwidth w/cRTP MP or FRF.12 (Kbps) = Frame Relay with compression
Bandwidth Ethernet (Kbps) = Ethernet

A standard G.729 call uses 26.8 Kbps of bandwidth for a call on Frame Relay.
A standard G.711 call uses 82.8 Kbps of bandwidth for a call on Frame Relay.

Is it in Autonomous or Lightweight mode?

A quick 'show version' will indicate if the Cisco Wireless Access Point is in Autonomous or Lightweight mode:

cisco AIR-LAP1131AG-N-K9 (PowerPCElvis) processor (revision A0) with 24566K/8192K bytes of memory.
Processor board ID FTX1217N0DF
PowerPCElvis CPU at 262Mhz, revision number 0x0950
Last reset from power-on
LWAPP image version 5.1.151.0
1 FastEthernet interface
2 802.11 Radio(s)

Another give away is that you can not enter 'config t' mode on when in Lightweight mode.

Port Spanning on Cisco 2950

An example of a SPAN configuration on a Cisco 2950 Switch is below.

• Monitor session 1 source interface fastethernet 0/1, 0/2, 0/3
• Monitor session 1 destination interface fastethernet 0/4 encap ingress vlan 1

The above example mirrors data from ports 0/1, 0/2 and 0/3 to the destination port 0/4 using vlan1 for vlan tagging.

To show the status of a SPAN monitor session use the following command.

• show monitor session 1

Where 1 is the session number from the above statement.

Configure and using the WebDialer

The Cisco WebDialer is used with CUCM to allow users to make calls from the web and desktop applications.

The following is a guide in how to setup and configure the Cisco WebDialer.

1. From Cisco Unified Serviceability, enable the 'Cisco WebDialer Web Service.



2. Allow 'Standard CCM End Users' and 'Standard CTI Enabled' permissions for the End User account.




3. Log into the CCMUser user page and navigate to 'Directory' and select an extension you want to dial.





4. Verify.

CUCM SCCP PLAR also known as Hotdial Phone

Follow this procedure to configure PLAR in CUCM:

1. Create a Partition.



2. Create a Calling Search Space and add the Partition create in the previous step.



3. Create a blank Translation Pattern that translates to the destination phone. Under 'Called Party Transformations' set 'Called Party Transform Mask' to 1001.





4. Assign the desired Calling Search Space for the Door Phone and Destination Phone.

a. Door Phone


b. Destination Phone



5 Verify.

How to block the caller ID on On-Net calls (ext. to ext.)

This guides shows how to block the caller ID from internal phone extensions, internal extension to internal extension:

1. Create two new Partitions, PTAllow and PTBlock.



2. Create two new Calling Search Spaces, CSSAllow and CSSBlock.

3. In the CSSBlock, add the PTBlock at the top as well as the Partitions where you want the phones to call and in the CSSAllow add the PTAllow Parition.



4. Create a Translation Pattern:

• In the Translation Pattern field, add XXXX or any other mask so that all the internal calls match this pattern.
• In the Partition field, add the PTBlock.
• In the Calling Search Space field, add CSSAllow.
• In the Called Party Transformation Mask, set the Calling Name and Line to Restricted.
• In the Called Party Transformation Mask, set the Translation Pattern field to XXXX or any other mask.

5. In the line settings on the Phone, set the following:

• On the line, set the Partition field to PTAllow.
• In the Calling Search Space field, choose CSSBlock.

6. Verify

Cisco Hardware and Software Compatibility Matrix

Supported Cisco Unified Communications Manager Releases by Server
http://www.cisco.com/en/US/prod/collateral/voicesw/ps6790/ps5748/ps378/prod_brochure0900aecd8062a4f9.html

Cisco Unified Communications Manager Software Compatibility Matrix
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/compat/ccmcompmatr.html#wp40074

Configuring Cisco Unified CM Groups

CUCM groups are used for redundancy and call process load balancing using a prioritized list of CUCM primary, secondary and tertiary (backup) servers. When a device attempts to register to the primary server that may be unavailable, the device tries to register to the next secondary backup servers, if this secondary server is also unavailable the device tries the tertiary server (three CUCM servers can be listed).

Each device pool has one CUCM group assigned to it. The video shows two CUCM servers configured as backups of each other, the CUCM7PUB group has 192.168.199.10 as the primary the 192.168.199.11 as the secondary, and the CUCM7SUB has 192.168.199.11 as the primary and 192.168.199.10 as the secondary.



Note : CUCM disables autoregistration by default. Enabling autoregistration carries a security risk in that "rogue" phones can automatically register with CUCM. You should enable autoregistration only for brief periods when you want to perform bulk phone adds.

Before enabling auto-registration a protocol should be selected, such as SCCP or SIP, this is done in System > Enterprise Parameters > Auto Registration Phone Protocol



Auto-registration can be enabled by CUCM groups from System > Cisco Unified CM Group, when auto-registration is enabled on a CUCM group, the previous groups auto-registration is automatically disabled.



Auto-registration can be enabled on a specific CUCM (this server needs to be a member of the CUCM group that is configure for auto-registration) from System > Cisco Unified CM, here you must select a starting and and ending DN range, this automatically disables the "Auto-registration Disabled on this Cisco Unified Communications Manager" checkbox and enable auto-registration.

CUCM LDAP Trace Using Real-Time Monitoring Tool (RTMT)

The Real-Time Monitoring Tool (RTMT) is a client-side application from can be downloaded from CUCM Plugins. RTMT uses HTTPS and TCP to monitor CUCM system performance, device status device discovery, CTI applications, and voice messaging ports.

Traces can be activated from CUCM Servieability, RTMT is used to view the results. Even when RTMT is not running as an application, tasks such as alarm and performance monitoring updates continue to take function on the server in the background.

The following shows a trace on the DirSync service which is used for LDAP integration.



Traces need to be disabled when no longer required.

Basic Phone Configuration, Elements and Relationship

Basic endpoint configuration for IP Phones are are as follows:

• Phone NTP Reference (SIP)
• Date/Time Group
• Presence Group
  
• Device Pool (Cisco Unified CM Group, Regions and Locations)
• Common Device Configuration
  
• Security Profile
• Softkey Templates
• Phone Button Templates

Phone NTP Reference
The Phone NTP Reference is configured to ensure that SIP (Session Initiation Protocol) phones get their date and time from the NTP server from the NTP server. If the NTP server is not reachable the SIP phone uses the 200 OK response date header from the REGISTER message for the date and time. SCCP phones get their date and time information from the SCCP messages.

Date/Time Group
Devices connected to CUCM can be configured with different time zones, these time zones are configured in the Date/Time Group which then get applied to a Device Pool. One Date/Time Group can be assigned to one Device Pool and that Device Pool is assigned to one device. By default a CMLocal Date/Time Group is configured automatically at time of installation, this group is part of the system and should not be renamed.

Regions
Maximum bandwidth for audio and video calls are specified using Regions. The audio codec determines the type of compression and the maximum amount of bandwidth that is used per audio call and the video call bandwidth comprises the sum of the audio bandwidth and video bandwidth but does not include overhead. Note: The G.711 audio codec is used by default.

Locations
The implementation of call admission control (CAC) is used to regulate audio and video availability by limiting the amount of bandwidth available for audio and video calls for a location.

Device Pool
Device and location information and other device characteristics are defined using Device Pools, these are common hardware setting that are assigned to IP Phones.

Common Device Configuration
Common Device Configuration is similar to Device Pools but they are user related, such settings are Softkey Templates, Music On Hold and Locales.

Cisco Unified CM Group
CUCM Groups are used for redundancy and call process load balancing using a prioritized list of CUCM primary, secondary and tertiary (backup) servers. When a device attempts to register to the primary server that maybe unavailable the device tries to register to the next secondary backup servers, if this secondary server is also unavailable the device tries the tertiary server (three CUCM servers can be listed).

Security Profile
All devices need to be assigned a security profile. Security profiles included settings like device security mode, Certificate Authority Proxy Function (CAPF) settings, digest authentication settings (SIP only) and encrypted configuration file settings. Default none-secure profiles are configured during the installation on CUCM.

Softkey Templates
Allows CUCM administrators to configure softkey templates options according to the devices intended roles and or applications.

Phone Button Templates
Allow for the configuration of common button templates types such as Speed Dials, Lines, Privacy, Service URL, Speed Dial BLF and Call Park BLF.


Elements Involved in Configuring an IP Phone
Note: Some of these elements can applied to multiple locations, such as the 'Locations', they can be applied at the Device Pool as well as the phone configuration. In this case the phone configuration would have priority over the Device Pool configuration.