8 thoughts on - Asterisk And Deutsche Telekom

• Am 13.06.2015 um 13:54 schrieb Luca Bertoncello:

  I don’t think so. Most users will use the router provided by Telekom.

  Anyway, after 15 seconds of Google’ing for Magenta Zuhause and SIP, maybe this will help you:

  http://wiki.innovaphone.com/index.php?title=Howto:Deutsche_Telekom_Magenta_Zuhause_SIP_Provider_Compatibility_Test

  http://hilfe.telekom.de/hsp/cms/content/HSP/de/3378/faq-350884716;jsessionid71C998DA2C6AF06C6A4531D3EC952A

  If you can’t test it right now, obviously, then just test it when the switchover has been made. What’s the problem? 🙂

• It doesn’t really depend on your sip.conf and Asterisk. Your gateway/router will be the major problem. My summer project will be to look at session border controllers which separate the local PBX features from the WAN side. The most simple setup would be to use a FritzBox, which I
  think can handle SIP trunks as well. I’ll try my luck with pfSense, where I’ll have a look at Asterisk, FreeSwitch and possibly Kamailio for the telephony part. You need only basic switching capabilities here and the focus is on security (geo stuff, access patterns, …) and access rights, possibly patching some SIP headers. It’s also nice to have an intrusion detection system like Snort and a defined interface for packet capturing.

  I have already a lot of experience with pfSense and I appreciate all the security, monitoring features and stability, but I don’t really know whether in fall I’ll have something that can be recommended. Anyway, my attempts to setup reliable SIP and IAX2 protocols so far failed. I
  always found workarounds, but in case of interruptions, DSL line termination, IP changes etc, I
  frequently ended up with wrong intermediate ports and failing connections with routers that I
  don’t know. For me it is easier to have everything with pfSense under my own control instead of figuring out the peculiarities of certain NAT implementations. The worst thing that can happen to me is a customer with a 15 year old router I’ve never seen before. It is usually easier to say that a special router/SBC is part of the deal instead of guessing how much hassle it could be this time. If I look at the complexity of my routers’ packet filtering, it makes definitely sense to separate gateway from internal functionality.

  One could say that cascaded Back-to-Back-User-Agents look peculiar, but once you start to think about maintenance, it makes a lot of sense (to me and momentarily).

  jg

• Markus schrieb:

  These users do NOT use Asterisk on theis Telekom-line… I asked for someone using Asterisk on Magenta Zuhause… 🙂

  I already know these links, and I configured my Asterisk to do that
  (hopefully!), but I can’t be sure, since I can’t test it…

  If you can’t test your parachute now, then just take an airplane, climb at FL95 and jump, what’s the problem? 🙂
  The problem is: that if the parachute does NOT work, you’ll be dead…

  If my Asterisk-configuration don’t work, I don’t have a phone and my wife cannot work…

  Regards Luca Bertoncello
  (lucabert@lucabert.de)

• jg schrieb:

  Are you sure?
  Right now I’m using an italian SIP-Provider (Messagenet), configured in my sip.conf and I can receive calls without any problem… So, I don’t think, I have to expect problem on my NAT (anymore… initially I
  had some problems…).

  Regards Luca Bertoncello
  (lucabert@lucabert.de)

• There’s nothing special, only if you want to set up your own infrastructure for finer control.

  jg

• jg schrieb:

  OK, understood… Well, this will be (eventually) a future problem… 🙂

  First, I want to get my Asterisk working with Deutsche Telekom.

  Regards Luca Bertoncello
  (lucabert@lucabert.de)

• Am 13.06.2015 um 14:44 schrieb Luca Bertoncello:

  You will find out the day the switchover will be made by Telekom. If it doesn’t work, you’ll analyze why and fix it within a few minutes, you already did most of the preparation/work today, and then you’re all set. I don’t see the problem. It’s not like you are running an emergency room or something where you depend on 24×7 connectivity. And if you were, you would approach this totally differently.

• Asterisk together with an ip-based account from Deutsche Telekom is no problem and there is no problem with NAT too because you can use IPv6.

  My only problem was the router, a Zyxel Speedlink 5501. This router was delivered from Deutsche Telekom and there is no support from Zyxel for it.

  It stopped working many times a day. May be it’s fixed now with the latest firmware-update but I have not tested it. I am using a Fritz!Box7490 now and everyhing is running smoothly.

  Regards Guenther
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