In the month or two since I posted my review of the Gigaset A580IP SIP/DECT phones I’ve been contacted a number of times by people struggling with configuring the phone for their chosen ITSP. In most cases it’s a simple matter of the people not being familiar with some of the terminology common to SIP service providers, and being able to map the terms use by their ITSP to the menus on the Gigaset web admin portal.
SIP terminology can be a little obtuse. For example, what’s the difference between “User Name” and “Authorization User Name?” The difference is important but it’s not immediately obvious to the non-technical.
The authorization user name is specifically used as part of the login credentials that allow the phone to access the ITSPs systems. The simple “user name” relates more to the specific assignment of one phone or extension. There might be many different “users” who share the same authorization credentials, as in one person who has several extensions assigned to them.
With respect to OnSIP I have often been asked if there’s any special requirement to enable wideband / HDVoice calling. No, there’s literally nothing to do in this regard. The codec is enabled by default on the Gigaset phones. If your call is IP end-to-end, as between various extensions on an OnSIP virtual PBX, and both phones are G.722 capable then you can enjoy the best call quality available today.
To make things abundantly clear, here’s an annotated screen shot of the admin page on my A580IP showing exactly where the OnSIP credentials get entered.
I’ll be collecting up some more details on the various other ITSPs that I use and posting a similar description for each one.