Method #1
Situation: host A is the server which has a normal user added for us, and we want to connect our host B as a client.
Host A’s sip.conf has this entry for the normal user:
1 2 3 4 5 6 | [testuser] type=friend secret=abcd host=dynamic context=foo qualify=yes |
Because the host is defined as dynamic, we have to register with our client. Add this to our host B’s sip.conf (to the [general] section):
1 | register => testuser:abcd@hostAipaddress |
And add this to the bottom of sip.conf:
1 2 3 4 5 6 7 8 | [testuser] type=peer username=testuser secret=abcd host=hostAipaddress context=incoming callbackextension=cba ; this extension will be called on host B when host A calls testuser qualify=yes |
This way we can call any extension on host B (in host B’s foo context) like this:
1 | exten => 123,1,Dial(SIP/${EXTEN}@testuser) |
Note: ${EXTEN} will be replaced with 123.
We can only call host B’s cba extension from host A using this method.
Method #2
Situation: we want to call any extension on host B (in the specified context) from host A and vica versa.
Add this to host A’s sip.conf, to the [general] section:
1 | register => testuser:abcd@hostBipaddress |
And this to the bottom of host A’s sip.conf:
1 2 3 4 5 6 7 | [hostA2hostB] type=peer username=hostA2hostB secret=abcd host=dynamic context=foo qualify=yes |
Add this to host B’s sip.conf, to the [general] section:
1 | register => testuser:abcd@hostAipaddress |
And this to the bottom of host B’s sip.conf:
1 2 3 4 5 6 7 | [hostA2hostB] type=peer username=hostA2hostB secret=abcd host=dynamic context=bar qualify=yes |
This case we can call any extension in host B’s bar context from host A, and any extension in host A’s foo context from host B using a command like this:
1 | exten => 123,1,Dial(SIP/${EXTEN}@hostA2hostB) |
Scottie was sleepy when we arrived home around midnight, and Manyika doesn’t care about the laser pointer. :)
We’re having some fun these days in the office:
For this solution I used these hardware:
- BeagleBone
- magnetic door open sensor
- a cheap CM102-based sound card from eBay (sold as 3D USB sound card for about $2)
- a USB hub
- a TP-LINK WN722 WiFi dongle.
- 2 active speakers by my colleague makos (passive would have been okay too, as the CM102 drives them pretty loud)
Musicless version:
This is an older video from December, when we got the Replicator2.
Recently I’ve been on GITEX in Dubai. After the exhibition we travelled to Oman to look around. Here’s a short (and a longer) video about the 10 day trip:
I have an ADSL connection at home in Tata with only about 800kbit/s upload bandwidth. I had to figure out how I can prioritize VoIP traffic with my new RouterBoard 750GL.
First my upload had to be throttled down in the RouterBoard a little below my ADSL upload speed. I added a new queue in the Queues window -> Queue Tree:

“inti” is my ASDL PPPoE interface. After this, I created 8 subqueues for each available priority (RouterOS supports 8 priorities):
I installed two Mikrotik RouterBoard 750s in my network last week. One of them is NATing my home ADSL connection, the second one is in the Gerecse tower and routes between my home network and the newly installed Pusztamarót Wi-Fi link. Here’s a picture of the two Ubiquity AirGrid M5 HPs on the Gerecse tower used for the HA2NON-HA5KDR and HA5KDR-Pusztamarót links:

The antenna on the left is connected to our APRS repeater. Here’s my current network topology:
I used Streamzoo as my mobile photoblogging service since Picplz (which I loved) closed. I must admit I hate Streamzoo, it’s interface is too complicated, the photos sometimes won’t upload, their website is ugly and I don’t see the point in tagging my photos to sort them into “streams”.
Now I have uploaded all my previous Picplz and Streamzoo photos to a Tumblr blog and I will continue to post my photos taken with my cell phone and effected using pixlr-o-matic there. The address of my new photoblog is m.nonoo.hu.
About me
I'm Nonoo. This is my blog about music, sounds, filmmaking, amateur radio, computers, programming, electronics and other things I'm obsessed with.
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