GotSpeech.NET

One of the most common ways of queuing outbound calls with Speech Server is by using the built in MSMQ support. For the most part, using a message queue is extremely straightforward and easy to implement. But there is one gotcha – call throttling. When an outbound call fails to connect, Speech Server will start throttling down the number of ...

  When placing outbound calls there are a number of scenarios that you will want to apply business logic too. When your application reaches a BUSY number for example, you will need to make an appropriate decision as to how to process this result (should you redial, wait some amount of time and then redial, stop calling, etc). In order to ...

When testing Speech Server applications in our lab we often use what we call a “Box-2-Box” test. This is where we point two Speech Server instances at each other such that “Box A” makes an outbound call to “Box B” over the local LAN. This can be useful when load testing an the application beyond the number of physical ports you have available. ...

Wireshark is a free tool for capturing network traffic. It is an invaluable resource for troubleshooting problems with VOIP calls. It is available for download from www.wireshark.org (current version for Windows as of this post is 1.05). I’m going to walk through the steps required for setting up a basic trace with Wireshark. This will give you a ...

I have had more than one question about this, Microsoft OCS 2007 Speech Server only supports SIP over TCP (or TLS), it does not support SIP over UDP. I really don't know why, but I've come the reasonable assumption that they do this becuase some of thier SIP message are larger than what UDP supports. What does this mean? Well the ...