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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…

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…
Advice Solution

IPPBX solution


Dear Experts:

We are setting up secure on-premise IT infrastructure and looking for on-premise


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 …
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 …
Research Solution

FreePBX upgrade suggestions needed

The previous system admin at our company implemented this FreePBX system and it has been working …
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 …
Troubleshooting Solution

Design of voice/telephone service

Dear Experts, is this diagram correct?

We have 500 users, intend to use both VoIP service and…
Troubleshooting Solution

Cant configure PRI on Cisco 2801

I have a 2801 and need to configure PRI for voice and data.  I am getting an error message "Not …
Research Solution

SMS: Single opt-in versus double?


I got through the details with Twilio to host my own phone number, which responds to my political


Who's your DAHDI? How to go from Zaptel to DAHDI in 5 Easy Steps.

The Zaptel people (www.zaptel.com) got kind of annoyed with the fact that they were getting …

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