Atcom IP0X IP Phone System Mini-review

Atcom IP04

Back in 2008 I posted an article about Affordable IP Phone Systems. This was all very well but I hadn’t actually ever touched the Atcom IP04 / IP08 phone system.

A couple of months ago I was able to get my hands on a demo unit thanks very much to Hadley at Nicegear. I regret being very busy with Uni at the time meant I wasn’t able to conduct an in-depth or scientific review.

Here are some of the things I can remember about the unit and the process of getting it up and running. Please note I would recommend trying it out first if you are considering going this route before leaping into it.

Hardware specifications

• CPU: 400MHz Blackfin 532 DSP Chip
• Zero/Four/Eight analog (FXO/FXS) module interfaces (IP01/IP04/IP08)
• 256MB NAND flash storage
• 64MB SDRAM

Software Features

• Built-in configurable Asterisk IP PBX
• Web based GUI
• High performance OSLEC (Open Source Line Echo Canceller)
• Voicemail
• Call forward, call waiting, call transfer
• Call conference
• Call queues
• SIP trunking, IAX trunking
• PSTN analog trunk (up to four PSTN trunks)
• Flexible dial plan
• Configurable IVR menu
• Replaceable MMC/SD memory

Setup

I constructed my review with a specific small business in mind (30 extensions, 7 trunks). Four trunks would be analogue and the rest VoIP. Extensions were going to be SIP but terminating to Linksys SPA8000’s as analogue adaptors as we have an existing analogue infrastructure in place (lots of cordless phones which were going to be challenging to find affordable VoIP alternatives).

First I launched straight in and tried to get it working. I couldn’t seem to get a dialtone on any of the analogue extensions. After a bit of playing around I decided to revert the settings to factory default. This got the analogue ports going properly in no time.

I set up a few extensions, that was OK, but I ran into some difficulty getting auto attendant / pre-recorded messages to work properly. Turned out that the extension group that was being used by the messages seemed to be conflicting with something, perhaps with the extension range I chose for the normal extensions. I opened up the extension list and there was some weird thing going on with the recorded message extensions being listed twice in the extension list – sorry I can’t remember exactly, but I did get it working without too much hassle.

Setup did take a bit of trial and error, however performing maintenance with the GUI should be a breeze after the initial setup.

Call Quality

The only oddity I noticed here was once when I was on a call and navigating the configuration GUI at the same time, I heard some digital artifacts on the line as each page was loading. I restarted the unit and didn’t have it happen again after that.

Based on a couple of unscientific test calls (Analog Phone > Atcom Unit > Analog Line > Telecom > Analog PBX) I came to the conclusion that the calls were a little noisier over the Atcom box than my normal line. I didn’t have any other ATA’s to compare what the quality was like. I imagine any FXO / FXS will degrade the quality slightly (any conversion from analog to digital), so wasn’t particularly worried about this. It could have also been to do with gain settings etc. If you were in a total VoIP environment, or using other adaptors to do the analogue conversion, this would not be relevant, as the quality of VoIP only calls was not at all degraded by the Atcom.

Conclusion

When looking at direct costs, this box would be hard to beat. We decided not to go with it at this stage, primarily because we were able to purchase our existing PBX for a good price.

The Atcom isn’t for the faint of heart – you do have to be prepared to do some tinkering to get this working right. However it should be easy to maintain after the initial setup. Admittedly I didn’t have to use the command line at all. I love the idea of no moving parts – and you shouldn’t settle for anything less (I could accept a fan or two). Consuming less than 5 watts of power is excellent.

I would recommend this unit to users who are going to use VoIP throughout their system (or at least for the trunks) rather than using analogue adaptors – although you should have a couple of analogue lines for failover and emergency calling. Do some experimenting of your own if you are planning to use analogue phones with it.

It would be great to hear about your experiences with these or other VoIP units, as would any other readers. Please leave a comment below or send me an email. Thanks!