ILS Overeview.

What is ILS?

• Inter cluster Lookup Services,allow users to call another end points using URI.

• When ILS is configured on multiple clusters automatically updates CUCM with the current status of remote cluster in ILS network

• Allow CUCM to learn about remote clusters without the administrator having to manually create connections between clusters

• The ILS services runs only on CUCM Publlisher

Cisco Unity Connection:Error importing User

My client complained that one user is having issue with his voicemail.When a call comes the phone just keeps on ringing and it does't go to voicemail.

I have checked his phone line and there was no voicemail profile assigned to line.So after that call started to go voicemail.

Add Voicemail Profile

Next user requested to reset voicemail PIN.So in CUC when I tried to import user it was giving me error below.

 Tuesday, March 12, 2019 3:10:25 PM EDT ERROR importing user (username) with

 extension = 4153 : A User with the specified extension already exists in the Partition.

This error comes up because of the same extension of user is assigned to some another user as an alternate extension.

To find out which user has been assigned user extension as alternate extension,we need to limit search to specific partition.Also we need to select to display both Primary and Alternate Extension in Selected Partition.

Limit Search to Partition

By this we get the user who has been assigned with alternate extension.In here you can remove that extension,Now we can import the user with given extension in CUC.

Troubleshooting Cisco IP Phone

There are many times it happens that your Cisco IP Phone does not register with the call manager server.
In a normal phone bootup process, it should go through the steps gives here.

When the phone does not go through its normal startup process

1. Check the network port is working:
• Change a network cable with the working cable.
• Try connecting phone to the port that is known to be working fine.
2. Check the phone is receiving power:
• Check that the electric outlet is working.
• If the phone is getting power via POE check the inline power port on the switch

Verify TFTP server settings

Cisco IP phone user TFTP server IP address to get the configuration file from where it gets the IP address of CUCM to register with the server.

If you are giving static IP addresses to phone then you need to add this IP address to TFTP settings.

When you are using DHCP, the phone gets an IP address from DHCP server. Check the IP address configured in Option 150.

When using DNS Check the hostname in DHCP Option 66.

Check if Cisco Unified CallManager and TFTP services are Active

Navigate to Cisco Unified Serviceability and follow the path Tools > Control Center > Feature Services and check the services Cisco Unified CallManager and TFTP are active and running.

  

CUCM:Network and Feature Services

Network Services

Network services can not be activated or deactivated.But they can only be started, stopped or restarted by the network admin from Cisco Unified Serviceability web interface.Network services are automatically activated from Cisco Unified Serviceability path, Tools > Control Center > Network Services.

Some of the examples of network services are as below.

• CDR Services: Cisco CDR Repository Manager
• Admin Services: Call Manager Admin
• CM Services: Call Manager IP Phone Service, Call Manager Extension Mobility Services
• Platform Services: Cisco Tomcat, Cisco Database, Cisco SNMP Agent
• Back up and Restore Services: Cisco CallManager Serviceability, Cisco CDP, Cisco Trace Collection Service
• Performance and Monitoring Services: RTMT Service, Cisco RTMT Reporter

Feature Services

Feature services can be activated or deactivated on per server basis.Feature Services can also be started, stopped or restarted by network admin from Cisco Unified Serviceability web interface.For that choose path ,Tools > Control Center > Network Services.

These feature services can also be activated or deactivated from Serviceability web interface path,

Tools > Service Activation.

Some of the examples of feature services are as below.

• Directory Service: Cisco Dirsync
• CM Service: Cisco CallManager, Cisco TFTP, Cisco CTIManager
• Performance and Monitoring Service: Cisco Serviceabilty Reporter
• CTI Services: Cisco CM Attendant Console Server,Cisco IP Manager Assistant
• Database and Admin Service: Cisco AXL Web Service ,Cisco TAPS Service,Cisoc Bulk Provisoning Service

User Facing Features in CUCM

In the CUCM cluster the publisher is the only server which contains read/write copy of database.All the configuration changes are done on the publisher server.Publisher server replicates the read only copy of changes to all the subscribers in the cluster.

The dynamic information which can be modified during the outage of the publisher is known as User Facing Features (UFF).

UFF data is replicated between all the servers in clusters.

Some of the examples of UFFs are as below.

• Message Waiting Indicator (MWI)
• Hunt group login status
• Device mobility (DM)
• Do Not Disturb, Enable/Disable (DND)
• Privacy, Enable/Disable
• Extension Mobility Login (EM)
• Call Forward All (CFA)

Timers in SNR Or Unified Mobility

Single number reach [SNR] or Unified Mobility allows the user to pick up enterprise call to his/her mobile phone when user not available in office.If user is back in office while call is going on, its allowed user to switch the phone from mobile to office desk phone.

How it works?

1. Assign IP phone soft-keys in two stages

• On hook
• Connected

2. Create End User in User Management >End User

• Check Enable Mobility to Enable 

3. Associate user to the IP Phone.

4. Add remote destination profile in Device > Device Settings > Remote Destination Profile > Add new. Click Save, now you can see an option to add a new Directory number (DN) .

5. Assign Directory Number and Rerouting CSS here.

6. At the end of this page click on Add a New Remote Destination and add remote destination number or mobile number here.

At the bottom of this page you will find Timer Information.These timers are listed below.

Answer Too Soon Timer

The minimum time in millisecond that CUCM requires the mobile phone to ring before answering the call.This settings accounts for the situations where the mobile phone is switched off or not reachable, in which network may immediately divert call to mobile phone voice mail.If the mobile phone is answered before this timer is expired,CUCM pulls call back to the enterprise number.

Range: 0-10,000 ms

Default:1 5,000 ms

Answer Too Late Timer

It is the maximum time in millisecond that CUCM allow to ring mobile phone.If this value is reached CUCM stop ringing mobile phone and pulls the call back to the enterprise number.

Range: 0 & 10,000-300,000 ms

Default: 19,000 ms

Delay Before Ringing Timer

Time that elapse before the mobile phone rings when call is extended to reach to remote destination.

Range: 0-30,000 ms

Default: 4,000 ms

CUCM:Line CSS & Device CSS

Before going ahead I hope you know the terms CSS and Partitions very well.If not you take a look at here.

Device CSS is applied to the IP phone added in the CUCM.Line CSS is applied to the Line / directory number.

If both CSS applied together then line CSS get higher priority and device CSS get second priority.

Cisco recommends to apply route pattern to the device and apply block pattern to the line CSS.

Here we take an example of making Local,Long distance,International and emergency calls.
We have PHONE_A with line number 1001. PHONE_A is allowed to call Local Numbers  and Emergency calls only.

For that we need to create two CSS. One in which contains all patterns  and in second we keep only blocked patterns.

CSS_Allow_ALL contains following partitions.

PT_Local
PT_Internation
PT_Longdistance
PT_Emergency

For the blocking we keep blocked numbers : Long distance partition and International partition in
CSS_Block.

CSS_Block contains following partitions.

PT_Internation
PT_Longdistance

So, Here we applied CSS_Allow_ALL to PHONE_A's device CSS and CSS_Block to PHONE_A's line CSS.With that PHONE_A is allowed to call only Local Numbers and Emergency calls only.