OpenVox BRI with mISDN_1_X

Chapter 1 overview

1. What is B200P

B200P is a PCI 2.2 compliant card supporting 2 BRI S/T interfaces, with an onboard multi NT power feeding circuit. NT/TE mode can be independently configured on each of 2 ports.

B200P can be implemented for building Open Source Asterisk based systems such as ISDN PBX and VoIP gateway.

Target Applications:
1) High Performance ISDN PC Cards
2) ISDN PABX for BRI
3) VoIP Gateways
4) ISDN LAN Routers for BRI
5) ISDN Least Cost Routers for BRI
6) ISDN Test Equipment for BRI

Main Features:
1) Four integrated S/T interfaces
2) ITU-T I.430 and TBR 3 certified and S/T ISDN supporting in TE and NT mode 3) Integrated PCI bus interface (Spec.2.2) for 3.3V and 5V signal environments
4) DTMF detection on all B-channels
5) Multiparty audio conferences bridge
6) Onboard power feeding
7) PCM bus connectors daisy chaining
8) Each of the 2 ports can be independently configured for TE or NE mode
Full software and hardware compatible with Junghanns.NET ISDN and mISDN driver
9) Application ready: ｕse Asterisk to build your IP-PBX/Voicemail system

RoHS compliant
Certificates: CE, FCC

2. What is Asterisk:

The Definition of Asterisk is described as follow: Asterisk is a complete PBX in software. It runs on Linux, BSD,Windows (emulated) and provides all of the features you would expect from a PBX and more. Asterisk does voice over IP in four protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware. Asterisk provides:
1) Voicemail services with Directory
2) Call Conferencing
3) Interactive Voice Response
4) Call Queuing
5) Three-way calling
6) Caller ID services
7) Support ADSI, IAX, SIP, H.323, MGCP and SCCP/Skinny

Chapter 2 Card Installation and Configuration

1. Hardware Installation and Setup
1) Configure the Jumper Settings
Please refer jumper setting for details. To install B200P, user should follow the steps.
A. Setting Card ID Switch
If user wants to install more than one cards of B200P in one pc, you should take care of the card id switch. It has three rules, which user must follow:
1. The card id of the first card must be set to 0, and the second card should be set to 1, and so on.
2. The First Card is a card that will be initialized (i.e installing driver) first when system is booting.
3. At most of cases, Linux will initialize PCI devices according to PCI slot order. The slot is nearest to the CPU will be initialized first; the slot at the far end from CPU will be initialized at last. That is to say, if user has more than one cards of B200P in pc, the one is nearest to CPU should be set to card id 0. Adjusting Termination of S/T Interface (100 ohm)
1. If a port will work on NT mode, user should set jumper to CONNECT (ON).
2. If a port will work on TE mode, Theoretically it should be to OPEN(OFF), but user might connect to some non-standard isdn terminal equipments that do not have terminal resistors, for such equipments, you should set it to CONNECT(ON).

C. Power Feeding Connector
These jumpers control whether the card will feed power to the external isdn terminal. User should adjust accordingly.

1) If the port will work on TE mode, user MUST set the jumper to OPEN(OFF) 2) If this port will work on NT mode, the ISDN terminal requires ISDN power supply, user should set the jumper to CONNECT(ON). ISDN terminal does not require ISDN power supply, user should set the jumper to OPEN(OFF).

D. Power Feeding Input
If one of the four power feeding connectors is CONNECT(ON), user should connect a D-type connecter from pc power supply to this jack, the D-type connecter is used to provide power to your CDROM ahd 3.5”HDD.

E. Power Supply Selection
Some newest model PCs do not provide +5V on the PCI slots, at those cases, use has to set the jumper to 3.3v.

F: PCM IN/PCM OUT
This feature will be used to connect two BRI cards.

2) Power off PC, remembering unplug the AC power cable
3) Insert B200P into a 3.3v or 5.0v PCI slot
4) Plug the hard disk power supply cable( D style) to power feeding input jack if need providing power to external equipment, please refer jumper setting section for the detail
5) Plug back the AC power cable, and power on PC

Chapter 3 Software Installation and Configuration

1) check the hardware detection by : lspci -vvvvvvvvvvvv
User should see the device inforamtion, if user can not see that, please swap to other slots to try.

2) Checking the supporting packages

Note that if there is no kernel source in the system, user should install them. User can run yum again: yum install kernel-devel`. It is time to check for the availability of some other packages:

rpm -q bison
rpm -q bison-devel
rpm -q ncurses
rpm -q ncurses-devel
rpm -q zlib
rpm -q zlib-devel
rpm -q openssl
rpm -q openssl-devel
rpm -q gnutls-devel
rpm -q gcc
rpm -q gcc-c++

If any of those packages is not installed, please install those packages by using yum

yum install bison
yum install bison-devel
yum install ncurses
yum install ncurses-devel
yum install zlib
yum install zlib-devel
yum install openssl
yum install openssl-devel
yum install gnutls-devel
yum install gcc
yum install gcc-c++

3) Downloading, unzipping and compiling driver

A. Download the stable version of mISDN, mISDNuser, chan_mISDN and asterisk drivers from , and copy the tar file to /usr/src/. Here，we are using mISDN-1_1_7 and mISDNuser_1_1_7. Users can get more details from mISDN.org.

B. Make links with kernel source:
ln -s /usr/src/kernels/2.6.18-8.el5-i686/ /usr/src/linux-2.6
Here, under /usr/src there is kernel source, user must create link linux-2.6 under /usr/src/. There are many files under /usr/src/

C. Compiling mISDN, mISDNuser and asterisk

cd /usr/src/mISDN-1_1_X
make
make install
cd /usr/src/mISDNuser-1_1_X
make
make install

cd /usr/src/asterisk-1.4.XX
./configure
make menuselect 
Now you should enable chan_misdn in the Channel Driver Section and reinstall asterisk with "make install". 

After that procedure you should have the current mISDN releases installed and the current chan_misdn with asterisk.

D. Modifying and loading modules for mISDN

If B200P is installed in the system, please edit the file: mISDN under /usr/sbin: cd /usr/sbin vi mISDN and change the line 277 like this:

elif ${LSPCI} -n -v -s "${line:5}" | ${GREP} "Subsystem" | ${GREP} "1397:b566\|1397:e884" > /dev/null

After modifying the mISDN file, the system will able to detect the B210 card. Now, user can run following commands under /usr/sbin:

./mISDN scan // detect Cards
./mISDN config // set configuration files under /etc/mISDN.conf
./mISDN start // start the drivers.

edit /etc/asterisk/misdn.conf to set a call routing.
run: asterisk –vvvvvvvgc to start up asterisk server
under asterisk console, run: misdn show stacks
if you can see the ports with active and up status, you will able to make calls. Otherwise, please check the setting files and physical connections.

Notes:
Test environments:
OS: Centos 5
Kernel version: 2.6.18-8.15
Asterisk version: Asterisk-1.4.11
mISDN version: mISDN-1_1_7
Hardware：OpenVox B200P

Status of LEDs : 
1) LEDs will turn into red and blink if the drivers are loaded. 
2) When a call is established, the LED will be turned into green status.
3) If ISDN cable　plugs into the port, the LED will not blink, but in red color.

chapter 4 References