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Inter-cluster BLF over SIP Trunk

Intercluster BLF over SIP Trunk

Recently we have configured Intra-Cluster BLF and now lets configure Inter-Cluster BLF so that we can monitor a device in remote cluster.

To configure this, we need to follow the below.

(Assuming that Partition, CSS, Route Pattern, Device Pool, Region, Location and other necessary parameters are configured.)

  • Ensure that you follow the previous post http://uccisco.wordpress.com/2014/06/20/busy-lamp-field-speed-dial/
  • Go to System > Security > Non Secure SIP Trunk Profile > Ensure that Outgoing Transport Type is selected as UDP and Accept presence subscription box is checked > Click on Save, Apply Config and Reset
  • Go to Device > Trunk > Add a SIP Trunk

Name all necessary parameters like Device Name, Description and assign appropriate Device Pool, MRGL, Location,  Incoming & Outgoing CSS, SUBSCRIBE CSS
Enter the IP Address of the Destination Call Manager and let the port be 5060
Click on Save, Apply and Reset

  • Go to System > Presence Group > Standard Presence group > Under Subscription permission select Allow Subscription and save
  • Go to System> Service Parameters > Select Server and Service as Cisco Call Manager > Default Inter-Presence Group Subscription  > Allow Subscription > Click on Save
  • Final Step > Reset Trunks

Results : –
On Hook on Site A Phone and BLF light turned on on Site B Phone
BLF-Intercluster-SiteA-SiteB2
On Hook on Site B Phone and BLF light turned on on Site A Phone
BLF-Intercluster-SiteA-SiteB1

5 thoughts on “Inter-cluster BLF over SIP Trunk”

  1. Theofanes Oliveira says:

    Please, which is the version of Call Manager you are working with?

    1. avinashkarnani11 says:

      CUCM 7.X and 8.X

  2. avinashkarnani11 says:

    The above testing were performed on CUCM 8.X

    1. Theófanes Oliveira says:

      Thank you for your attention. Do you think it is possible to do the same using CUCM 9.x? Thank you.
      *Theófanes OliveiraBrasília – Brasil*
      2015-01-29 22:54 GMT-02:00 Cisco Unified Communications :
      > avinashkarnani11 commented: “The above testing were performed on CUCM > 8.X”

      1. avinashkarnani11 says:

        I have not tested this with 9.X but i believe it should work with 9.X since it is the upgraded version of 8.X. But until and unless, i test it, i cannot confirm.

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Claudio Quiroz Cabello

Electrical Engineer CCNA Collaboration CCNA Voice CCNA R&S. I'm Electrical Engineer and I work like Support Engineer for a Telephony Service Provider Company. Before that I had position like Pre-Sale Engineer about small and medium multivendor telephony solutions. I have 5 years of experience working in Telephony Multivendor Projects. I am also 3 years of experience working in Support and implementation about Cisco Collaboration platforms: UCS server, UCM, Cisco Unity, Presence Server, Jabber, Gateway. Support Community is most useful in finding design, implementation and support tricks and shortcuts that greatly help me in my daily activities. If you need to contact me, please you can writte me.

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Kanishka Singh

CCNA Routing and Switching
Am a technology enthusiast. I work in network support providing support with implementation, maintaining and precisely troubleshooting the infra.
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