Skip to content

afterthenumber

Thoughts and experiences of a Cisco Collaboration engineer after clearing the CCIE lab…

  • Freelance Services
  • UC Applications
    • CUCM
    • sdl
    • sql
    • CUC
    • UCCX
    • IM and Presence
    • Cisco Jabber
    • Prime Collaboration
    • TelePresence
    • ExpressWay
    • WebEx
  • Development
    • AXL
    • SIP Normalization Scripting
    • sql
    • Software Engineering
  • Linux
    • ubuntu
  • IOS Devices
    • CUBE
    • IOS Media Resources
    • SRST
    • CME
    • Voice Gateways
    • ISDN
  • SIP
    • SIP Trunking
  • About Me
  • More

    Category: Voice Gateways

    IOS-based Tcl IVR Solution for Pre-Call Media and Business-Hours Schedule Announcements

    Overview I’ve recently written a Tcl script using Cisco’s Tcl IVR Voice Gateway API.  The script provides Time of Day routing.  It offers the ability for streaming audio… Read more “IOS-based Tcl IVR Solution for Pre-Call Media and Business-Hours Schedule Announcements”

    December 24, 2018 by jonathan

    Uncovering IOS 15.x and IOS-XE Licensing for the Uninitiated

    Cisco licensing is as best a mild irritation, but in reality, an impossibly poor, yet growing set of ill-conceived disparate implementations. IOS-XE and IOS v15.x licensing is… Read more “Uncovering IOS 15.x and IOS-XE Licensing for the Uninitiated”

    December 24, 2018 by jonathan

    Supporting CUBE NAT Integrations without Firewall ALG

    Overview Recently had a customer which wanted to connect to a public ITSP (Flowroute). Their network design required a dual-interface CUBE deployment model, with an “inside” private… Read more “Supporting CUBE NAT Integrations without Firewall ALG”

    December 21, 2018December 23, 2018 by jonathan

    Interpreting MGCP Debug Parameters

    I manage a number of deployments that still feature ISDN extensively, so debug mgcp packet is something that I’m reading off IOS CLI on a fairly routine basis at… Read more “Interpreting MGCP Debug Parameters”

    May 19, 2016May 19, 2016 by jonathan

    VoIP Bandwidth Calculations

    If you’re preparing for a your CCIE Written or Lab exams, or (far more importantly) if you need to perform bandwidth sizing for a VoIP design or… Read more “VoIP Bandwidth Calculations”

    May 15, 2016April 13, 2017 by jonathan

    Troubleshooting DTMF from ISDN PSTN

    Sometimes we unfortunately still have legacy requirements to support ISDN that still need to upgrade to SIP Trunking.  DTMF and even fax tones can be a pain… Read more “Troubleshooting DTMF from ISDN PSTN”

    March 14, 2016March 18, 2016 by jonathan
    Website Powered by WordPress.com.
    Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use.
    To find out more, including how to control cookies, see here: Cookie Policy