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Telephony Applications

$65/hr Starting at $45

For the past 7 years I have been developing IP Phone applications, which involve TAPI or TSAPI monitoring PBX's for call events. Some applications involve call control features using TAPI or TSAPI. Most development has been with Avaya's PBX, but have also worked with Shortel and Asterisk. Developed a paging application which can send audio and/or text broadcasts to IP Phones. Installations range from 200 to 3000 phone endpoints.

About

$65/hr Ongoing

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For the past 7 years I have been developing IP Phone applications, which involve TAPI or TSAPI monitoring PBX's for call events. Some applications involve call control features using TAPI or TSAPI. Most development has been with Avaya's PBX, but have also worked with Shortel and Asterisk. Developed a paging application which can send audio and/or text broadcasts to IP Phones. Installations range from 200 to 3000 phone endpoints.

Skills & Expertise

.NETAnalysisAPIAsteriskAvayaBenchmarkingC++Call ControlEditingMicrosoft SQL ServerMySQLPBXProcessingSQLTapiVb.netWindowsWindows 2000XML

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2 Reviews

  • Greg_Chavez

    Greg_Chavez says,

    Excellent communicator, excellent documentation, and very pleasant to work with. Met all deadlines, grasped the work quickly, and came in on time and on budget. Highly recommended.

    for .Net Program that utilizes vendor API's on May 14, 2015

  • David_Redfern

    David_Redfern says,

    Its been a pleasure working with David. All tasks were performed with professionalism and requests were handled with no hesitation. I will hire David again when I have more work in his field.

    for Verisign Pay Flow Pro on Sep 04, 2003