"Zoom Voice Over Ip Adapter (item #5801 00 11)with G.711 & Ilbc & G.729 Codecs" 9 out of 10. based on 123 ratings
Check Price Update Read More Reviews
Most helpful customer reviews
11 of 13 people found the following review helpful.
Be Warned! Not a true FXS/FXO device
By Dennis D
If you plan to use this with Asterisk, be warned. You CANNOT use this device as true independent FXS and FXO devices like you can the Linksys SPA3102. If you want to use it as a FXO (PSTN) device only, you can, but you MUST make it ANSWER the incoming call and hotline dial it to send it anywhere. If you are planning on using this with a software PBX like Asterisk, I recommend you see if you can find a good working example somewhere before you buy it. If you want to use it as a stand alone device to route 911 (and/or local) calls to a PSTN line and have it connect to a VoIP provider to save money, it will work great. If you want to use it to provide you with a FXS port and a FXO port and you'll handle the SIP traffic yourself with something like Asterisk, don't buy it.
2 of 2 people found the following review helpful.
Great product for the price
By Pacific101
I was tired of writing checks to the local telephone company and decided to venture out into VoiP services and see if I could save a few dollars. I researched for a couple of days and decided on a course of action. I found a service provider that outlined what appeared to be a pretty good price line for VoiP services, a company called Callentric. I then looked at the various VoiP modems that they recommended and that they supported. One by one I went down the list, looking 1st at cost and then at reviews, without exception the Zoom 5801 received the best overall ratings and was priced in a range that didn't choke my pocket book to death. So I ordered up 6 of them, thinking that would be enough to setup up myself and two family members who were going to jump ship on the local telephone company.I bought 2 for each of us because I figured without the phone company to help us out in the event of hardware failure it would be smart to have a second modem ready and able to take the
place of the 1st one if one of them should ever go kapooie.well.
That was over two years ago as I write this review and I have nothing but praise for these modems, they have performed flawlessly. So far 3 extra backup modems that I bought have just been setting in closets collecting dust waiting for the day that they might be brought out and put into service. In the meantime my highest monthly phone bill since the transition over to VoiP has been $17.45, and that was a real exception, my regular phone bill is $12.00 or less a month verses the near $60.00 a month I used to give the phone company. I would and do recommend the Zoom 5801 VoiP modem to anyone considering going over to a VoiP setup. I would of course check and find out that if it will work with whatever system your going with. On a final note Callcentric has been fantastic and their rates are very competitive with the others out there, they offer a variety of account types and terms to fit your specific needs and
their support team is second to none. I guess I could review and recommend them too lol. All and all the transistion to VoiP has been a very positive one, Zoom modems and Callentric have put my old money grubbing phone company to shame.
1 of 1 people found the following review helpful.
Works GREAT
By A. Whitney
Watch Video Here: http://www.amazon.com/review/RYS1GS56ALFHK We bought 4 of these ATA's and they are excellent. All 4 are in use. Voice quality is beyond outstanding and they just work great. There are some things you need to know:
- There are 2 flavors of this same model. One has "VOIP ATA 1+1" stamped/labeled on the front and the other has nothing stamped on the front. The difference is that the 1+1 can be configured with 4 different VOIP accounts and the other only 1 account.
- This is a discontinued model but there are many new ones on the market.
- In order for this device to work correctly without any problems you need the following firmware on the device:
Boot ROM Revision 1.0.4
Firmware Revision 1.4.0
Configuration Revision 1.4.5.xx
- Your chance of buying a new unit with the above revisions is a 50/50 chance. If you get one with these revisions be thankful! If you do not have the above revisions there is a
painful way to acquire this but you really need to be super polite and nice and beg to get it upgraded. You do this by setting the "Update Server Domain Name" = xx.xx.xx.xxx:xxxx (get from Zoom technical support)
Make sure all the update setting are enabled. Then call Zoom's Support Center and ask to talk to Joyce for a firmware update. Tell her you need to update the firmware on a Zoom 5801 and giver her the MAC address located on the device. When she is ready, plug the device in (reboot) and wait for the update. After update is complete, turn off "enable" on ALL the update configuration options. NEVER EVER DO A HARD RESET as this will erase your updates!
- The device has no watchdog so if your network changes configuration you most likely will need to reboot the device.
- GOOD NEWS: When it works it just keeps on working and working and working without problems.
- Device is small, compact, and runs VERY cool as to temp - no heat generated.
- It can handle 5+ REN = 5 phones on the same line
UPDATE 11/6/2013
Very important: Use a FIXED static IP in the setup menu because if your internet service goes down the device has a bad habit of reverting to an incorrect IP address and the only way to fix is to reboot. A static IP keeps the device ALWAYS up and running. Choose an IP outside of your DHCP IP range that your router uses to assign IP addresses. EX: If your router uses 192.168.x.1 to 192.168.x.200, then set static IP to 192.168.x.201 or 202 or higher