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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

Simple VOIP Solution Required

9
Ok.. this is a sensitive question.... so here goes.  I hope you will take this question in the …
Article

Cisco Call Manager 6 CDR -> SQL server

20
Ever wanted to query Cisco Call Manager CDR records from MS SQL Server? Here's how!

CUCM can be …
Post

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 …
Article

How to Install Asterisk on Ubuntu 9.04 / 9.10 from Scratch

2
The point of this post is to give you a copy/paste installation solution to setting up Asterisk 1.6 …
Troubleshooting Solution

Cannot get Polycom VVX441 phone to register with Free PBX

5
I have a client that got swindled in to paying an ungodly amount of  money for a free PBX system. …
Troubleshooting Solution

SIP VoIP is not working

51
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

53
I am trying to setup a Cisco 2811 with CME 4.0 to perform hairpin call transfers, specifically to my…
Research Solution

Where to buy IP Phone Internal Parts

bygaz629
4
Hi,

Does anyone know a provider of internal phone parts to build my own IP phone?

Thanks
Gareth

Troubleshooting Solution

1 side can't hear Calls from Cisco 3905 phones

21
We recently started noticing that a certain floor of a building on campus can only call 1 direction.…
Troubleshooting Solution

Skype not forwarding calls to mobiles?

byfuruno
2
I own a local Skype number. It is fowarded to a Vodafone mobile.

The Skype account seems to be in …
Troubleshooting Solution

understanding nec SV9100

byMr.X
4
hi - its a general question trying to understand how phones/phonesystems works .

got a client who…
Troubleshooting Solution

Access denied when assigning device pool to PRI vwic.

5
I am setting up an MGCP gateway on my 2911 router. I have a 4 port vwic card installed. When i try …
Troubleshooting Solution

Design of voice/telephone service

byDP230
19
Dear Experts, is this diagram correct?



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

Identifying unused phone lines

6
Not exactly technical, but I'm sure others here have had to deal with this. Client is going through …
Article

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

1
The Zaptel people (www.zaptel.com) got kind of annoyed with the fact that they were getting …
Troubleshooting Solution

Channel count TDM vs SIP

byEric
5
Hi
I am looking at SIP vs TDM and I am a little confused as to what makes a channel in SIP  - in …
Troubleshooting Solution

VMware 6.7 vmotion cluster IP addresses

3
I'm looking for diagrams/topology for VM-Vmotion VCenter 6.7 design with IP's.  I just finished a …
Troubleshooting Solution

Cisco Desk Phone - What do these buttons mean?

1
This is a Cisco CP-8861 phone.
Can someone tell me what the buttons inside the red rectangles mean?…
Troubleshooting Solution

Help with EdgeSwitch VoIP setup

2
Hi,

Can anyone help me figure out the easiest way to configure an EdgeSwitch 24 250w for VoIP …
Troubleshooting Solution

Questions on Continuing with home Collaberation lab.

1
I currently have CUCM and Unity running on my desktop through VMs. I am wanting to now move on to …

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