Pizza-meet (Meeting, 7 October 2017)

Welcome to ACKspace; a hackerspace located in Heerlen, The Netherlands.

A hackerspace is a place where people get together, socialize, share knowledge, tinker and build stuff.

In order to make this possible we have a collection of tools, (useful) stuff, work area and a lounge where we can relax and discuss our favorite games.

Become a participant

Featured articles:

Exhibition

Event: Main Page
Featured:	Yes
State:	Completed
Start date:	2017/09/03
Start time:	11:00
End date:	2017/09/03
End time:	17:00
Contact:	xopr
Kind:	Lecture, Meeting, Party, Workshop
Location:	ACKspace
URL:
Fee:	Free
Short description:	Carbon 6 open door day / Dutch Hackerspaces national open door day

previous events

Open dag carbon6 / Avenue Panache/ kunstmarkt 18-9-2016

De open dag die we meeliepen met carbon6 was geslaagd! Enkele opmerkelijke dingen:

de LEDstrip is niet opgeblazen!
de Guerilla VoIP spartaanse reincarnatie werkte
mensen van 6 tot 75 jaar waren geïntrigeerd door de morse-demonstratie; de een had er nooit van gehoord, voor de ander was het 50 jaar geleden.
de LEDstrip is niet opgeblazen!
de 3D printer werd druk bezocht door veel mensen.
er was een NFC-implant demonstratie
had ik al verteld dat de LEDstrip niet opgeblazen is deze keer?

Bbq

Event: Main Page
Featured:	Yes
State:	Completed
Start date:	2017/06/24
Start time:	12:00
End date:	2017/06/24
End time:	17:30
Contact:	Xopr
Kind:	Party
Location:	ACKspace
URL:
Fee:	€4,50 (normally between €5,- and €10,-
Short description:	omnomnom

Ter ere van het bestuurswerk dat Vicarious (van vóór 4 September 2010) en Da Syntax (vanaf 13 Oktober 2012) jarenlang hebben gedaan is er een barbecue georganiseerd als feestelijke afsluiting en bedankje voor deze twee heren.

xopr: betaald
Da Syntax: betaald
Computer1up: betaald
Vicarious: betaald
Stuiterveer: betaald
Roelke
Pmwq
Prodigity: betaald
Wolkje: betaald
Jetse
aes256cbc

Hint: add yourself by typing:

* ~~~

stats

bon

11 personen
3560 gram vleesch gegeten
Totaal: € 49,45
Maakt € 4,50pp (do the math. Al het extra wordt gedoneerd aan ACKspace)
over: 10 frikandellen + 12 hamburgers, nog wat kartoffelsalad (NEEM MEE NAAR HUIS/NU ETEN!)
Pizza-meet

Event: Main Page
Featured:	Yes
State:	Planned
Start date:	2017/10/07
Start time:	18:00
End date:	2017/10/07
End time:	19:00
Contact:	xopr
Kind:	Meeting
Location:	ACKspace
URL:
Fee:	pay your own pizza
Short description:

Vanaf heden is er elke 1e zaterdag van het kwartaal een deelnemersvergadering: de pizza-meet!

Deelnemers kunnen van te voren¹ hun stukken inzenden naar Xopr (secretaris) of via de discussion page en via het bekende info emailadres.

¹⁾met van te voren wordt bedoeld, het liefst een dag (of meer) van te voren.

De eerstvolgende meeting is op Saturday, 7 October 2017

(voorlopige) agenda

Opening en vaststelling agenda
Vaststelling vorige notulen en actiepunten
Mededelingen en ingekomen stukken
T.B.D (stuur je stukken in!)
Rondvraag
Sluiting

notulen

Vorige vergadering — Laatst genoemde vergadering(en)

Telephone System

Project: Main Page
Featured:	Yes
State	Active
Members	xopr
GitHub	No GitHub project defined. Add your project here.
Description	Telephone Communication System
Picture

synopsis

Create and/or implement a telephone communication system for fun and automation. It can provide conference and congress rooms, quickly notify if the space is closed and provide a quick and cheap way of communication.

xopr 5 April 2017: I'm working on a new system to replace the current virtual machine

VoIP system with its involved servers

new system

The current system is lacking functionality and needs revisioning. Currently, the trunks that register with the extensions, don't work. When they do, participants registered to the (public) VoIP system are able to directly dial an internal space extension.

The current VoIP setup consists essentially of three servers ('nodes')

NLnode (primary public system, sip.ackspace.nl)
DEnode (fallback public system, sip1.ackspace.nl)
SpaceNode (internal system handling IVR and internal extensions)

The public servers are tied with SRV records as a semi-high availability setup with the primary service having high priority and weight (10 20), while the backup server has it the other way around. All (correctly implemented) services connect to the servers in the given order.

Note that currently, it is not yet possible for an extension on the primary server to call another extension on the fallback server. xopr has seen it happen that a third-party Fritz!Box falls back to the secondary server and never reconnects to the primary server without editing the credentials and reapplying the registration.

This is the SRV output:

$ dig -t srv _sip._tcp.ackspace.nl

; <<>> DiG 9.10.3-P4-Ubuntu <<>> -t srv _sip._tcp.ackspace.nl
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 783
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;_sip._tcp.ackspace.nl.		IN	SRV

;; ANSWER SECTION:
_sip._tcp.ackspace.nl.	384	IN	SRV	10 20 5060 sip.ackspace.nl.
_sip._tcp.ackspace.nl.	384	IN	SRV	20 10 5060 sip1.ackspace.nl.

;; Query time: 8 msec
;; SERVER: 127.0.1.1#53(127.0.1.1)
;; WHEN: Wed May 03 20:15:15 CEST 2017
;; MSG SIZE  rcvd: 110

All nodes connect to the BudgetPhone PSTN trunk for incoming calls, both public nodes connect to CheapConnect for the conference (and backup) number, to VoipBuster for outgoing calls and to Speakup for Limesco cell phone services. The SpaceNode connects to VoipBuster for an alternative PSTN trunk and landline services and to InterVoip for cell phone services.

When a call comes in, both public nodes try to route the call within 3 seconds: they try to call the SpaceNode user/trunk. When this fails, they try to call each other in case one of the nodes wasn't connected to BudgetPhone. If this fails, a tape will be played after 10 seconds stating that "currently, we're not reachable", whereafter the user will be placed in the (public) conference room.

If both public nodes weren't connected to BudgetPhone, the SpaceNode will answer within 10 seconds with the IVR.

current status

SpacePhone ENUM number
Dutch language for IVR
spacestate information logic
Every room has its own phone
possible to dial ackspace.nl sip addresses (info, conf, [username])

todo

Create new (vanilla) VM on new server
update/extend IVR menu
- mention the space state before actually answering (183:progress)
- start with a brief menu, but give more info on demand
add support for Cisco 7900 phones (Cisco phone deployment)
- need to put an interface on a different VLAN
- update all switches to offer the same VLAN
- add TFTP and add the firmware + configs
- update the DHCP (option 66 or 150)
- update dialstring to both signal SCCP and SIP
update public SIP addressing (dedicated public IP or a VPS redirect)

wishlist

multilingual IVR
enable fax/modem detect
enable 2600 toying option
key people (1333)
Add a HAM autopatch system to the telephony system so sip phones and amateur radio are interconnected
simple intercom service
number lookup script
various participant registrations (see #extensions)
some scripting to ease life and add some nifty features
trunking over VPN
install PoE blade or smaller PoE switch (might want to choose for regular power supplies)

extensions

This is the list of registered extensions. If you want to register your own extension, let Xopr know. For available extensions, refer to the #dialplan

(refresh table)

Extension	Reference
100 176 150 170 177	Reserved extension numbers
101	SlACKspace
102	HACKspace
103	StACKspace
109	DECT
172	Coolepascal
191	Stuiterveer
196	Xopr
199	Vicarious
1,333	Key people

dialplan

The current dialplan expectation is defined as followed:

used numbers

dialplan	destination
(\+\|00)([1-9]\d+)	international
0[1-9]\d+	long distance
100	ring all onsite (ACKspace) extensions
10[1-9]	onsite (ACKspace) extensions
~~112~~	~~European harmonized (emergency)~~¹
~~116\d{3}~~	~~European harmonized (social interest)~~¹
1200	ACKspace portal (external IVR)
1201	alternate IVR (events)
~~1233~~	~~mailbox~~¹
~~1244~~	~~prepaid calling credits~~²
130[1-9]	listen-in event conference rooms 1-9
1331	conference rooms
~~1333~~	~~Key people (cell forward)~~¹
1334, echo	echo test
1335	delayed echo test
1357	local server identification
1377	remote server identification
139[1-9]	party-line event conference rooms 1-9
~~140\d\d+~~	~~government services~~¹
150	ring all offsite extensions
15[1-9]	offsite extensions
~~16\d\d~~	~~carrier select~~¹
170\d+	reserved for future (expanding) purposes
17[1-9]	participants extensions
18\d\d	subscriber information service
19\d	participants extensions
[2-8]\d{6}	local numbers (Heerlen, 045)
9\d\d	SpacePhone (interhackerspace enum extensions)

¹⁾ currently not in use

²⁾ not available due to IP restrictions

To do: (valet) park, call intercept, call return, redial, paging

Interactive Voice Response

The concept for the new IVR menu will have something like this:

ack_main and ack_info (are the same, but with different spoken texts)

1[059]\d: direct dial extensions
2 switch to English language
3 switch to Dutch language
5 direct dial ring group
6 dial key persons, enable voicemail detect and use time schedule
7 go to conference rooms
8 go to menu ack_extra
9 go to menu ack_info
0 go to menu ack_directory

ack_extra

1 more info on space state (time of toggle)
2 speak out telephone number and/or IP address
3 listening rooms
4 extended time service
5 contact location abroad (when online)
6 echo test
8 call test setup
9 repeat this menu
0 go back
* go to main menu

ack_directory

100 for slACKspace (lounge)
101 for hACKspace (workshop)
109 for DECT (wireless)
??? for chairman
??? for secretary
??? for treasurer
1(all other public extensions)
5 call anyone
8 lookup by typing first three characters using keypad
9 repeat this menu
0 go back
* go to main menu

history

Chaos Communication Camp 2011

The CCC Binary Voice Radio telephony server was a mixed success. Actually, it was a disaster:

The visual ring indicator circuit didn't trigger the optocouplers so that was the first thing to fail.
a lot of power failures which caused a lot of downtime and eventually database corruption
the DECT system was getting too complex for the simple phones we've modded for field reporting (Technical clarification came from one of the Eventphone key people who explained that the antenna register on cheap phones was too small to identify them all). Besides that, it looked like the cabling had short-circuited because the 9v battery didn't have any oomph left to generate amplified audio.
wifi had a hard time maintaining the links and coverage wasn't 100% so the wifi field reporter wasn't a good alternative
last but not least: the public IP addressing threw a spanner in the works and the server went limbo.

The server's database went corrupt, and after a restore, it didn't match the regular config files. I got it semi-working after it was far too late to make it useful to the studio. Also, after I got it to work, it wouldn't register correctly to the Eventphone trunk and we only got to call the editorial room (2781|BVR1) via DECT twice or so. Despite all that stress, it was promising, so better luck next time.

Open door day 2011

For the open door day, I set up a stand-alone test system with two Cisco 7940s, a FxS/FxO and dual FxS ATA, which included some softclients.

The phones were successful in a rough field test on the open door day, connected to a FreeSWITCH exchange and two ATAs which provided connections to two additional analog handsets. The field test proved reliable enough and a great platform for some hilarious phone pranks.

The Cisco phones had a menu where you could view a 2 bit grayscale snapshot of the two space cams, and you were able to switch some outlets. People were allowed to navigate the configs and exploit functionality and LuckY sniffed and replayed audio over a wifi link.

Other events

Moving to the Putgraaf: Used a (wrong) Yagi antenna, connected to HeerlenLive, tunneling to the server in the xCBS building, making it ACKspace's first offsite VoIP phone in a place where there wasn't even carpet or ventilation
Open door day 2013: Experimented with a cluster of Raspberry Pis and put some phones on various locations on the ground floor
illegale show 2013(?): Provided power, uplink and DECT in a location about 80m away from any utility facilities
Open door day 2015: probably one of the largest setups counting physical phones; no features whatsoever
Open door day 2016: lot's of lag on the skinny protocol (controlled by a Raspberry Pi

connecting various devices to ACKspace VoIP

connecting the Fritz!Box

Note that the Fritz!Box is pretty quirky regarding SIP: it can't handle a 407-unauthorized correctly when in router mode (which is needed to differentiate between public and internal calls). xopr had more success setting the device as a flat switch and putting it behind a generic router (tested with a ZyXel).
It also doesn't like usernames; you have to start with a number and change it afterwards.
It does seem to have more ring power than the tested ZyXel, though.

connecting the Linksys PAP2T

The following settiings are needed:

TBD

connecting the N510 IP PRO

Under Settings » Telephony » Connection, the following settings are needed:

Connection name or number: <anything>
Provider: Other provider
Authentication name: <username>
Authentication password: <password>
Username: <username>
Display name: <anything>
Lookup Enabled (if available, version ≥ 240): yes
Domain: ackspace.nl
Registration server: <leave empty>
Proxy server address: <leave empty>
Proxy server port: <leave empty to trigger SRV lookup>
Registration server: <leave empty>
Registration server port: <leave empty to trigger SRV lookup>
Registration refresh time: 110
STUN enabled: Yes
STUN server address: stun.ekiga.net
STUN server port: 3478
STUN refresh time: 240
Outbound proxy mode: Automatic
Outbound proxy port: <leave empty to trigger SRV lookup>
Select network protocol: Automatic

Note that these settings take a while for the Gigaset to connecto to the right server.

Also, make sure that under Settings » Telephony » Advanced VoIP settings, SIP port: (or its random range) does not conflict with other SIP devices behind the same NAT.

connecting the Sipura SPA3000

Under Admin Login » Advanced » Line 1, the following settings are needed:

SIP Port: <make sure this port does not conflict with other SIP devices behind the same NAT>
Proxy: ackspace.nl
Register Expires: 110
Use DNS SRV: yes¹
DNS SRV Auto Prefix: yes¹
Display Name: <anything>
User ID: <username>
Password: <password>
Dial Plan: (1[01579]xS0|1[23]xxS0|5000S0|2xxS0|00x.|0[1234567]xxxxxxxxS0|088xxxxxxxS0|0800xxxx.|090[069]xxxx.)

¹⁾ or use: Use Outbound Proxy: yes and Outbound Proxy: sip.ackspace.nl

connecting the Thomson ST2030

Under SETUP » VoIP Service » Basic Setup, the following settings are needed:

Profile Name: <anything>
SIP Unregister: unchecked
URI Type: SIP
SIP Transport: UDP
Connect Reuse: checked
Service Domain: ackspace.nl
Registrar Server Address: ackspace.nl
Port: 5060
Proxy Server Address: ackspace.nl
Port: 5060
SIP Local Port: <make sure this port does not conflict with other SIP devices behind the same NAT>
TLS Local Port: <make sure this port does not conflict with other SIP devices behind the same NAT>
Registration Timer: 110
Registration Frequency: 110

Under ADVANCED » Networking » Outbound Proxy, check the following setting:

Outbound Proxy Flag: disabled

Under ADVANCED » Voice Settings » Codec Setup, set all codec settings to:

Fixed

For the dial plan go to ADVANCED » Voice Settings » Advanced, VoIP Dial Plan: |1[01579]x|1[23]xx|5000|2xx|00x.T|0[1234567]xxxxxxxx|088xxxxxxx|0800xxxx.T|090[069]xxxx.T|

Schoonmaakbord

Het schoonmaakbord was opgezet met het idee om (een deel van) de space soepel draaiende te houden.

Waarom niet meteen dat concept doortrekken naar alles wat bijdraagt aan een betere space? Boodschappen gedaan? Handig space project opgezet? Aan infra gewerkt? .. ? Vinkje erbij! Mensen verdienen erkenning voor hun bijdrages! Go team go! :P

De volgende zaken dragen bij aan een schone space en aan je collectie vinkjes (deze moet nog verder uitgeschreven worden):

Stofzuigen
Afwassen
Ramen schoonmaken
Boodschappen gedaan
Handig spaceproject opgezet
Aan infra gewerkt
...

Visiting address:

ACKspace

Kloosterweg 1

6412 CN Heerlen

IRC:irc://chat.freenode.net/ACKspace

Mail: see the communication page

Telephone:+31-45-71-12345