Solved

Asterisk on DSL

Posted on 2009-04-14
7
526 Views
Last Modified: 2013-11-12
I asked a question the other day about asterisk and this is probably a S.O.S. question but I want to set up the asterisk box with a dedicated DSL connection and the internet with its own connection. I know this is a matter of routing and having the phones on one subnet and the pcs on another. My question is there any documentation which would scretch this out for a very small network. I really don't want to try and think to hard about this we are taking about 10 computers and 10 phones plus a fax. Thanks
0
Comment
Question by:arahming
  • 4
  • 3
7 Comments
 
LVL 36

Expert Comment

by:grblades
ID: 24145478
You can do it quite simply. Have two network interfaces on the Asterisk box. One connects to the internet direct (no NAT router) while the other connects to your internal network on the same subnet as all your pc's. There isnt any real need to have the phones and the pc's on a different subnet.

This way the pc's use your other DSL connection while all phone calls go through the asterisk box which will use its own dedicated DSL.
0
 
LVL 1

Author Comment

by:arahming
ID: 24149358
Is there any documentation on this. I can see how it works in my head but would like to have a foundation..

Thanks
0
 
LVL 36

Accepted Solution

by:
grblades earned 500 total points
ID: 24150017
I dont know of any written documentation but it is exactly what I do for the company I work for and we have been running Asterisk for almost 3 years now.
The only thing we probably do differently is that we have an E1 (ISDN30) interface for the telephone calls and all calls come in and go out over it. The 2nd DSL (SDSL in our case) line is used for remote users to connect to.
0
What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

 
LVL 1

Author Comment

by:arahming
ID: 24150798
one more question are you using layer three switches or is asterisk taking care of the routing
0
 
LVL 36

Expert Comment

by:grblades
ID: 24155263
There is no routing involved as such. Asterisk has two interfaces. One on the internal network and one connected directly to the internet. Asterisk will sit inbetween any calls between the internet and the internal phones. So Asterisk itself is receiving and forwarding on the voice packets instead of them being routed directly between the internal phones and the internet. This avoids the potential problems associated with using NAT.
0
 
LVL 1

Author Comment

by:arahming
ID: 24157956
I am just a little confuse on how the IP phones know to get there address from asterisk or is there two network cards and the DHCP address are reserved sorry I have configure asterisk before just not with a dedicated DSL line
0
 
LVL 36

Expert Comment

by:grblades
ID: 24158124
The phones are just on the internal network so they get their IP address from the same DHCP server that the desktop computers so.
One of the asterisk interface cards is on the same internal network so its the IP address of that interface (which will be a fixed static IP) that you configure on the phones where you enter the IP address of the server they should connect to.
So the phones just get an IP address from a standard DHCP server. Its their own individual configuration which tells them the server which they should register with.
0

Featured Post

Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

Join & Write a Comment

Although VoiceOver IP has been around for a while, internet connections have only recently become fast enough to provide good call quality. Now, VoIP has become a real option for businesses looking at ways to improve their business model. In this ar…
Skype is a P2P (Peer to Peer) instant messaging and VOIP (Voice over IP) service – as well as a whole lot more.
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…
This video demonstrates how to create an example email signature rule for a department in a company using CodeTwo Exchange Rules. The signature will be inserted beneath users' latest emails in conversations and will be displayed in users' Sent Items…

707 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now