Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Advice Needed on Asterik VOIP Solution

Posted on 2006-11-21
3
278 Views
Last Modified: 2010-04-12
We  are testing Asterik, for a VOIP solution, as a replacment for an aging PBX in one of our branch offices. We have forecasted 23K needed to replace the PBX and phone sets. This is going to require a complete change out of phone systems. We are running a 1.5 MB MPLS to all of our branch offices. We are using open source for enterprise solutions such as security, helpdesk, and a means of securing of our incoming customer data transmissions. While I don't mind using open source for some solutions I have concerns about using it in this instance.

I would like to know your experiences with Asterik and any lessions learned you can pass on.

Though more costly, we are also considering the Cisco VOIP solution. We have 2821 routers in all of our branch offices and went with these routers with the thought that we might migrate to the CISCO VOIP solution.

Any input you can provide would be greatly appreciated.    
0
Comment
Question by:jhhaley
  • 2
3 Comments
 
LVL 36

Accepted Solution

by:
grblades earned 500 total points
ID: 17994060
I shared your concerns when I installed Asterisk about 9 months ago but I am happy to say that it has worked fine ever since. I have only had one problem where the OS ran out of file descripors caused by some kind of bug in asterisk where it did not release them in some circumstances. Phone functionality worked fine but the voicemail system stopped working. Doing a weekly 'restart when convenient' is recomended practice and I wasn't doing that. If I had I would not have encountered the problem.

We have a primary and a backup asterisk server which both have E1/T1 cards fitted for connection to our ISDN30 telephone line. The idea being that asterisk runs on a normal PC so hardware reliability is an issue so we have a backup server we can immediatly switch over to.
Configuration and voicemail files are syncronised over to the backup server every night using rsync.
If you intend to use any application which needs to save variables to a database I would recomend using LDAP. LDAP has an automatic master/slave system so you can have automatic replication of updates between ldap servers which is nice.

We use the Grandstream GXP-2000 phones which work very well. The only downside is the speakerphone is very poor and we have had volume issues when trying to use headsets with them but for general use they work very well.
0
 
LVL 1

Author Comment

by:jhhaley
ID: 18037400
My central office has 100 phones and with 8 branch offices we total 525 total phones. Would you go with Asterik or a Cisco VOIP solution? Other than what you mentioned are their any best practices, maintenance issues, proactive monitoring or other recommendations you can pass on that you feel are needed to keep this system up and running 24 X 7. Are you providing 100% of the maintenance and support?
0
 
LVL 36

Expert Comment

by:grblades
ID: 18037567
I would personally go with Asterisk and have a server on each site. If you are not familiar with Linux then you might want to go with Cisco instead and pay a little more but have an easier admin task. It really depends on what you are comfortable doing.

I think I basically covered everything in my first post. There is a good page at http://www.voip-info.org/wiki/view/Asterisk+High+Availability+Solutions which gives other solutions to a high availability system. We just had a backup box we could bring online manually but with additional software configuration and hardware you can make a linux cluster with fully automatic failover.

Dont try using Trixbox. It does not give you the full configurability through the web interface and trying to customise it laster is very difficult. You are better off installing Linux and Asterisk from scratch.
0

Featured Post

Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
CUCM and two Polycom 7936 using 3 75
Porting over phone number to another circuit 3 57
Porting numbers 3 69
How to change the IP address of Cisco CUCM Publisher 2 67
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…
Hey there Heard about jingle, the add on for XMPP that enables point to point audio between two XMPP clients. No server config necessary. Actually quite a cool feature. However, how good is it if you can not use those voice capabilities to do a P…
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

856 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