Archive

Archive for the ‘Linux’ Category

Asterisk Called Party Name

July 2nd, 2010

With a traditional PBX when dialing an extension the name is displayed on the phone. With Asterisk 1.4 and 1.6.x the name is not displayed even though phones, like the Polycom SoundPoint series, have support for it with the Remote-Party-ID SIP header. Read more…

Asterisk, Linux, VOIP , , ,

Polycom Soft Keys and Exchange UM

March 6th, 2010

In Asterisk 1.6, FreePBX, and Exchange UM I mentioned how to setup an extension to transfer a caller to voicemail. Let’s take this one step further and add a soft key on the Polycom. Instead of having to dial ##407ext, you will be able to press the Xfer VM button and it will prompt for the extension. Read more…

Asterisk, Linux, VOIP , , ,

Polycom BLF with Astersisk

March 6th, 2010

They are two methods of setting up BLF on Polycom phones. The first gives you idle or inuse status only. A ringing phone will show up with a solid inuse light. The good thing about this method is users can create BLF for extensions themselves. If this is all you need start by enabling the presence feature in the phone provisioning file. Read more…

Asterisk, Linux, VOIP , , ,

Asterisk 1.6, FreePBX and Exchange UM

February 28th, 2010

Setting up Asterisk 1.6.1 and FreePBX 2.5 or 2.6 to work with Exchange 2007 UM is easier than Asterisk 1.4 thanks to Asterisk 1.6 including support for SIP over TCP. However only Asterisk 1.6.1.4 and lower work without modification. Read more…

Asterisk, Linux, VOIP , , ,

Asterisk and FreePBX Caller Initiated Blind Transfers

February 28th, 2010

If you place a call and perform a blind transfer Asterisk will continue dialplan execution with a result of ANSWER. This causes an issue with FreePBX as it thinks dialing on the trunk failed. The transfer will go through, but you receive the all circuits are busy message. Read more…

Asterisk, Linux, VOIP , ,

Configure VMware Time Sync from the Console

October 14th, 2009

VMware Tools provides the VMware Toolbox application to configure the time sync option for the guest operating system. This works great with Windows guests or Linux guests using the X11 GUI. However all my Linux guests run without the X11 GUI. If you know the current setting of the time synchronization option you can use one of the following commands. Read more…

Linux, VMware

ESX 4 CentOS Guest Showing Udev Unknown Key

July 11th, 2009

After installing VMware Tools on a CentOS 5.3 guest hosted on ESX 4 I was receiving the following udev warnings during startup.
Read more…

Linux, VMware , , ,