Troubleshooting Repeated SIP REGISTER and INVITE Request Packets Sent From Polycom Phone to Asterisk Server

We recently deployed an Asterisk PBX server at a small office site that has one user. The system has worked reasonably well for several days but there have been a few issues. For example:

  • Occasionally the user picks up the phone and hears no dial tone.
  • Occasionally when the phone rings, the user picks up the phone and doesn’t hear the other party.

We are running Digium’s AsteriskNOW Software PBX distribution version 2.0.2, which includes Asterisk version 1.8.11. The user’s VOIP phone is the Polycom SoundPoint IP 335, running UC Software version 4.0.2.11307 and BootROM Software version 4.4.0.0080.

To troubleshoot these problems, we Continue reading » Troubleshooting Repeated SIP REGISTER and INVITE Request Packets Sent From Polycom Phone to Asterisk Server

Cannot Access Windows Network File Shares Via WLAN on Telus Actiontec V1000H Modem Router

Several months ago I switched from Shaw to Telus for both HDTV and internet service. While I have been reasonably happy with Telus Optik TV and Telus Optik Internet, there have been several challenges along the way. For example, in a previous story, I talked about some much needed improvements for Telus Optik TV. In another story, I also talked about the potential challenges of adding a second wireless access point to your Telus Optik network.

Today’s story is about my problems with Continue reading » Cannot Access Windows Network File Shares Via WLAN on Telus Actiontec V1000H Modem Router

How to Fix “This operation has been cancelled due to restrictions in effect on this computer”

A user got this error today when trying to click on a hyperlink in an email in Outlook 2003 on a Windows XP machine:

This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator.

As far as I can tell from Googling this error message, it seems to occur because Continue reading » How to Fix “This operation has been cancelled due to restrictions in effect on this computer”

How to Block All Email From a Country

You’ve all received them before: those annoying emails from people in foreign countries claiming to be diplomats, bankers, lawyers or heirs to huge fortunes. They have millions of dollars sitting in some bank account but for some reason they need your help to get the money out of the account. If you help them, you’ll get to share in the fortune, to compensate you for helping.

Of course, it’s too good to be true. To get the money out, you usually have to Continue reading » How to Block All Email From a Country

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