Archive for March, 2011

My VoIP system

In the past few weeks I worked converting our home and work telephone system to VoIP. Here you can see the schematics: I’ve used the following VoIP adapters: Linksys SPA-3000, Linksys PAP2T, Linksys SPA-1001 (all from eBay of course). I have separate Skype users for home and the shop (skype-otthon, skype-uzlet) with a country-wide landline […]

If I call #88 on my VoIP system, I’ll hear a synthesized voice saying the current outside temperature. The quality and readibility is quite bad, but the whole thing is not hard to set up, and this way my Mom & Grandma can also listen to the temperature, so it’s worth it :) Here’s how […]

I’ve rewritten both the English and Hungarian Duke Nukem 3D Android widgets, so the force closes and hangs are completely gone for now. More info.

I made a widget for Android for my DIY temperature measurement system, available here. Source code is here.

Measuring temperature

See my other post about measuring temperature with USB Temper devices using a router with OpenWRT here! I’ve bought two TEMPer USB sticks from eBay and installed one of them in my room and the other one on the pine tree in front of our house. The outside sensor is around 3m from the ground, […]

For Hungary/T-Com: 425@-20,425@-20;2(0.3/0.3/1) This means 425Hz on 300ms, silence for 300ms, and 1 second is considered a full cycle.

T-Com IPv6 test

My ISP runs an IPv6 test since the autumn of 2009. Now I write a post about my settings on my home Debian server/router which work correctly for me to use IPv6. I have a script called /etc/network/if-up.d/adsl which starts the v4 PPPOE connection: #!/bin/sh pppoe-start /etc/ppp/pppoe-ipv4.conf /etc/network/if-down.d/adsl: #!/bin/sh pppoe-stop /etc/ppp/pppoe-ipv4.conf pppoe-stop /etc/ppp/pppoe-ipv6.conf killall -9 […]

Other sites mostly working? Then your MTU setting is incorrect. Try: ip6tables -t mangle -A FORWARD -p tcp –tcp-flags SYN,RST SYN -j TCPMSS –set-mss 1452 And in radvd.conf (interface xxx section): AdvLinkMTU 1452; Renew your Windows clients with ipconfig /renew6 and then check MTU with netsh interface ipv6 show subinterfaces, it should be 1452. You […]

Here’s how you can make and receive Skype calls from Asterisk without purchasing Skype for Asterisk from Digium. We’ll use stsProxy and SipToSis. The main benefits of this method is that you can access Skype as a normal user, you don’t have to create a business user for the SIP interface needed by Asterisk, and […]

Here’s how you can record calls to mp3 files with Asterisk. Insert these to extensions.conf: 123456789[globals] MONITOR_EXEC=/usr/local/bin/asterisk-wav2mp3 [macro-record] exten => s,1,Set(CALLFILENAME=${STRFTIME(${EPOCH},,%Y%m%d%H%M%S)}-${MACRO_CONTEXT}-${DIALEDPEERNUMBER}) exten => s,n,Set(POSTFIX=$["${CALLFILENAME}" =~ "\/([0-9a-zA-Z#_\-]+)$"]) exten => s,n,Set(CALLFILENAME=$["${CALLFILENAME}" : "([0-9a-zA-Z#_\-]+)"]${IF($[${LEN(${POSTFIX})}=0]?: _${POSTFIX})}) exten => s,n,Monitor(wav,${CALLFILENAME},m) Recording start example: exten => 555,1,Dial(SIP/1234,,M(record)) The script asterisk-wav2mp3 can be downloaded here. Make sure it’s runnable (chmod +x asterisk-wav2mp3). […]

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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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