Posted by Scott Laird
Wed, 27 Apr 2005 18:56:11 GMT
This isn’t exactly new news, but Cisco bought Sipura yesterday. Sipura makes a number of VoIP products, including the SPA-841 phone that I’ve been using for the past few weeks. They’re generally considered to have the best SIP implementation of any of the cheap vendors, and they make good, solid products for low prices. It’s a nice combination. Cisco has been licensing Sipura’s technology and using it in Linksys’s cheap VoIP hardware for around nine months now. Linksys has had to jump through a number of hoops to keep Sipura happy recently; apparently Sipura didn’t like customers buying the unlocked Linksys PAP2-NA instead of the more expensive Sipura SPA-2000. Now that Cisco owns both companies, I suspect that they’ll work out their differences.
Hopefully Cisco won’t gut Sipura to keep them from competing with Cisco’s more expensive products. The jury is still out on Cisco’s Linksys acquisition–they haven’t released many exciting new products since Cisco bought them, but they haven’t killed off any of their interesting product lines or tried to stop the flood of alternate Linux firmware distributions for the WRT54G family either.
One thing that’s interesting about this acquisition is that Sipura was formed by a bunch of ex-Cisco people. After Cisco bought Komodo in 2000, a bunch of the Komodo people left Cisco to go form Sipura. Now they’re back at Cisco again. This seems to be how Cisco does R&D these days–it spins employees off to work on their own products and then acquires them if they accomplish anything interesting. I’m not convinced that it’s a bad way to deal with R&D risk in a huge company–it shields Cisco from the cost of failure and promotes risk-taking by R&D engineers, but it doesn’t do anything to help unify Cisco’s massively fractured product lineup.
Posted in Phones, Asterisk, Computer Networking | Tags cisco, sipura, voip | no comments
Posted by Scott Laird
Tue, 15 Mar 2005 20:06:59 GMT
I ordered a Sipura SPA-841 SIP phone from VoIPSupply.com last week, and it arrived last night. I haven’t had enough time with it yet to write a really comprehensive review, but I’d like to share a couple first impressions.
First–the SPA-841 is a lot smaller then I’d expected. It’s under half the volume of my Cisco 7940. It fit into a 2” tall FedEx mailing box, which I didn’t expect at all. Even though the base is small, it’s not very light–it feels like a real office phone, even if it’s a lot smaller then most of the office phones that I’ve used. It doesn’t seem to slide around too much on my desk.
Once I plugged it in, it booted very quickly. The Cisco phone takes around 30 seconds to boot, while the Sipura is ready for use in under 10 seconds.
The SPA-841 comes in a box with no documentation. Once you plug it in, you can configure it via HTTP using a web interface that the phone provides. Supposedly it’s also possible to feed it a configuration file, but Sipura only gives out the configuration file documentation and tools to VoIP service providers, not end-users. Personally, I’d rather edit text configuration files on a server and upload them to the phone then fiddle with the hundreds of settings that Sipura provides on their web interface, but if I’m only dealing with one phone, it isn’t a big difference. If I end up buying another couple SPA-841s for around the house, I’ll probably start agitating for open provisioning tools.
Even though there isn’t a whole lot of documentation, the phone isn’t too hard to configure. I spent about 15 minutes with it and had it accepting incoming calls, dialing out, and handling voice mail. The voice mail light (Message Waiting Indicator, or MWI) is just a dinky red LED sitting in the middle of the phone; I really like Cisco’s MWI a lot better. The Sipura also provides a MWI stutter dial tone, and it’s hard to miss that, even if you don’t see the tiny LED shining at you.
At this point, it seems to work, but I’m not completely happy with the way it’s configured. Once I’ve finished tweaking the config, I’ll write up a full review with pictures comparing it with the Cisco phone and provide a few configuration recommendations.
Update: I haven’t had time to finish the review yet, but I wanted to add a couple quick notes:
The phone does come with a getting-started flyer, a glossy 8.5x11 mini-booklet with directions for plugging it in, connecting it to the network, and configuring it to talk to a few different SIP providers. It doesn’t come with anything more substantial. Sipura’s website has had a 71-page PDF Users’ Guide for a while, and just recently added a 79-page PDF Admin Guide. I haven’t had time to read the admin guide yet.
The audio quality seems perfect. I’ve only spent a half-hour or so on the phone, but I haven’t noticed any dropouts. The handset is pleasantly loud.
The latest firmware release, 3.1.1 (the update from last week’s 0.9.5–nice version number jump) includes support for “SIP-B,” which is apparently a standard being pushed by a few phone and softswitch vendors that make it easier to add PBX-like features to SIP phones. This includes bridged line appearances, shared missed-call DBs, called-number ID (the opposite of caller ID–it shows the name that goes with the number that you dialed), standardized call park/pickup support, and a few other useful features. Unfortunately, the SIP-B spec doesn’t appear to be public right now, even though the vendors involved have made some attempts at running pieces of it through the IETF’s standardization process. I suspect that SIP-B is really just a blanket name that covers a bunch of small, independent SIP enhancements that will be pushed through the I-D/RFC process one at a time, but for now there’s no real documentation available. Hopefully that will change soon so Asterisk can better support SIP-B hardware. (Micro-update: Sylantro has sent me a pile of documentation on SIP-B. I’m not sure that it’s complete, but there’s quite a bit of it, and they’re getting ready to put it on their website. So I’m mentally adding them to the “good guys” list when it comes to standards compliance and promotion)
Several people have mentioned that they’ve had problems with the rubbery phone buttons on the SPA-841 sticking. I suspect that they’ve fixed this with more recent phones, as mine has been perfect. I wouldn’t say that the buttons are as nice as Cisco’s, but I don’t have any complaints.
I guess that’s a good summary of the phone–it’s not as nice as Cisco’s phones, but I have no complaints about it, either. It seems to work well enough, it has a decent feature set, and it’s cheap. I’d love to see them add PoE support, a ‘SPA-842’ model with a built-in Ethernet switch, a backlight for the LCD and buttons, and some way of supporting external dialing directories, but none of these are really critical–as it is, the phone works quite nicely, and I’ll probably order 2-3 more SPA-841s over the next few months.
Posted in Phones, Asterisk | Tags asterisk, phone, reviews, sipura, spa841, voip | 4 comments
