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IP Telephony

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to e...

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Troubleshooting Solution

Unable to transfer a call between a SIP Trunk and Call Manager


We are currently having an issue transferring a call between a SIP extn and a extn sitting on…
Troubleshooting Solution

SIP - IP Phone firewall configuration

A customer has recently had new phones installed that connect to a cloud based PBX.  They have a …
Troubleshooting Solution

phones no longer working after firewall change

Our network has a schematic of 192.168.254.x.  Our network has voIP phones. We just installed a new …

Cisco Call Manager 6 CDR -> SQL server

Ever wanted to query Cisco Call Manager CDR records from MS SQL Server? Here's how!

CUCM can be …

Just found a new IP Lookup tool which shows your IP address …

Just found a new IP Lookup tool which shows your IP address along with your location on a map.
To …
Troubleshooting Solution

Sonicwall 200 tz port forwarding?


I want to open a port for my pubic ip, hence, i added a TCP 6 port 6 on services, then ran…
Troubleshooting Solution

whats a good mass texting system for our business?


need a good mass texting system that allow for group texting and chatting in a string.  hopefully

Advice Solution

How to reduce cost of high speed internet?


How to reduce cost of high speed internet?

I have zero complaints about my speeds

I pay $195/month to

Troubleshooting Solution

VoIP calls without IP PBX

Dear Expert, can we make a VoIP call without an IP PBX?

If can, please suggest the best …

How to Install Asterisk on Ubuntu 9.04 / 9.10 from Scratch

The point of this post is to give you a copy/paste installation solution to setting up Asterisk 1.6 …
Research Solution

I need a "virtual phone" number for my business. Options?


I need a "virtual phone" number for my business. Options?

I am launching a business and need a direct

Troubleshooting Solution

recording on click to call

I have recording - always on all extensions and all queues. But when I use the click to call …
Troubleshooting Solution

Avaya vs Shortel

A decision will be made on either of the following systems (not yet had comparative quotes yet), but…
Troubleshooting Solution

SIP VoIP is not working

We have SIP VoIP connectivity between Kuwait and Dubai on Avaya Avaya IPO 500 which is Installed in …
Troubleshooting Solution

Hairpin call transfer on CME

I am trying to setup a Cisco 2811 with CME 4.0 to perform hairpin call transfers, specifically to my…
Troubleshooting Solution

Voip.MS with Cisco Unified CM 7

I'm looking for some help setting up an inbound DID with voip.ms with CUCM 7. It is not behind a …
Troubleshooting Solution

Firewall to use with VOIP setup

I am running Asterisk (PBX in a Flash) behind an old Sonicwall PRO 300. I get some choppy sound and …
Troubleshooting Solution

Cisco CM 8.5 help

HI all,

  I'm a complete noob the phone system.  I need help with some basic configurations.  I …
Troubleshooting Solution


I need help with Asterisk Server

i have Cisco asa 5505 WIth Linux Server (located at USA)
o …
Troubleshooting Solution

Dot1X Denying Access to Cisco IP Phones

We had a network person leave us and we started doing Dot1X and we have some phones that are just …

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