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Updated on March 16, 2022

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D110P /D110E on DAHDI User Manual

Estimated reading: 11 minutes 151 views

 

word image 1148

  OpenVox Communication Co.Ltd

 

D110P/D110E on DAHDI User Manual

Version: 2.2

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OpenVox Communication Co.Ltd

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Address: F/3, Block No.127, Jindi Industrial Zone,

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Copyright

Copyright© 2011 OpenVox Inc. All rights reserved. No part of this document may be reproduced without prior written permission.

Confidentiality

Information contained herein is of a highly sensitive nature and is confidential and proprietary to OpenVox Inc. No part may be distributed, reproduced or disclosed orally or in written form to any party other than the direct recipients without the express written consent of OpenVox Inc.

Disclaimer

OpenVox Inc. reserves the right to modify the design, characteristics, and products at any time without notification or obligation and shall not be held liable for any error or damage of any kind resulting from the use of this document.

OpenVox has made every effort to ensure that the information contained in this document is accurate and complete; however, the contents of this document are subject to revision without notice. Please contact OpenVox to ensure you have the latest version of this document.

Trademarks

All other trademarks mentioned in this document are the property of their respective owners.

Contents

General Safety Instructions 4

Test Environments 5

Chapter 1 Overview 6

1.1 What is Asterisk 6

1.2 What is D110P/D110E 7

Chapter 2 Hardware Setup 8

2.1 Span type setup 8

2.2 Slot compatibility 8

2.3Timing cable 9

Chapter 3 Software Installation and Configuration 10

3.1 Download 10

3.2 Installation 11

3.3 Configuration 15

Chapter 4 Reference 21

Appendix A Specifications 22

 

General Safety Instructions

word image 1150

CAUTION

  1. The computers that have D110P/D110E card installed must comply with the country’s specific safety regulations.
  2. Only service personnel should go to install D110P/D110E card.
  3. Before installing D110P/D110E card, please unplug the power cord and remove the cover from your PC.
  4. For avoiding personal injuries and damages to your machine and

D110P/D110E card, make sure bracket of the card is secured to the PC’s chassis ground by fastening the card with a screw.

  1. Electrical Surges, ESD are very destructive to the equipment. To avoid it, make sure there is a low impedance discharge path from your computer to chassis ground.
  2. To reduce the risk of damage or injury, please follow all steps or procedures as instructed.

Test Environments

CentOS-5.5

Kernel version: 2.6.18-194. el5

DAHDI: dahdi-linux-complete-2.4.0+2.4.0

Asterisk: asterisk-1.8.5.0

Libpri: libpri-1.4.11.5

Hardware: OpenVox D110P/D110E

Chapter 1 Overview

1.1 What is Asterisk

The Definition of Asterisk is described as follows:

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 standard-based telephony equipment using relatively cost-effective hardware. Asterisk provides Voicemail services with Directory, Call Conferencing, Interactive Voice Response, Call Queuing. It supports for three-way calling, caller ID services, ADSI, IAX, SIP, H323 (as both client and gateway), MGCP (call manager only) and SCCP/Skinny (voip-info.org).

 

Figure 1 Topology

1.2 What is D110P/D110E

The D110P/D110E supports E1, T1 and J1 environments. It is selectable on a per-card or per-port basis. This feature enables signaling translation between E1 and T1 equipments and allows inexpensive T1 channel banks to connect with E1 circuits.

D110P/D110E supports industry standard telephony and data protocols, including Primary Rate ISDN (both N. American and Standard Euro) protocol families for voice, PPP, Cisco, HDLC, and Frame Relay data modes. Both line-side and trunk-side interfaces are supported.

D110P/D110E works well with Asterisk®, Elastix®, FreeSWITCH™, PBX in a Flash, trixbox®, Yate™ and IPPBX/IVR projects as well as other Open Source and proprietary PBX, Switch, IVR, and VoIP gateway applications.

Target Applications

  • Voice-over Internet Protocol (VoIP) Services
  • Complex IVR Trees
  • “Meet-Me” Bridge Conferencing
  • VoIP Gateways (support SIP, H.323, and IAX)
  • Legacy PBX/IVR Services
  • Voice/Data Router (replace expensive routers)
  • PRI/Switch Compatibility – Network or CPE

Chapter 2 Hardware Setup

There are some points that should be paid attention to when setting up D110P/D110E.

2.1 Span type setup

The jumper P5 on the middle of right side controls the function of each span at E1 or T1 mode. Setting P5 to close means SPAN1 will work at E1 mode. Setting P5 to open means SPAN1 will be T1.

2.2 Slot compatibility

D110P is compatible with 32-bit 5.0V PCI slot, 64-bit 3.3V PCI slot or 64-bit 5.0V PCI slot, but D110E is compatible with PCI-E ×1, ×2, ×4, ×8, or × 16 slot. You should confirm your slot type and insert D110P into a PCI slot or put D110E into a PCI-E slot as previously described.

Figure 2 PCI-E and PCI slot

2.3Timing cable

If you have just one card in the system, all channels on that card have already run under the same clock source, so timing cable is unnecessary. But if there are more than one card, using timing cable has some advantages. Before using the clock line, each card works on its own clock, therefore precision of the clock is limited; each card will send /receive voice data at different speeds. In voice usage, this small issue can be omitted, but in data communication such as Fax/Modem, it will cause big problems. Data loss will cause communication broken or fax broken. Timing cable will force all cards to work at the same clock source, send data at the same speed, as a result no data will lost.

If you found J914 (input) and J915 (output) interfaces on the card, it means the card supports clock line, for details, please refer to HERE.

Chapter 3 Software Installation and Configuration

D110P/D110E supports DAHDI software driver on Linux. To make full use of D110P/D110E, you should download, compile, install and configure Libpri, DAHDI and Asterisk.

3.1 Download

DAHDI software packages are available on OpenVox official website or Digium. Some patches should be added while the driver source is from Digium, therefore, it is recommended that downloading the DAHDI driver package from OpenVox official website.

Gain DAHDI source package from OpenVox:

http://downloads.openvox.cn/pub/drivers/dahdi-linux-complete/releases/1.3.2/openvox_dahdi-linux-complete-2.4.0+2.4.0.tar.gz

Get Asterisk software package from digium official website:

http://downloads.asterisk.org/pub/telephony/asterisk/releases/asterisk-1.8.5.0.tar.gz

Get Libpri software package from digium official website:

http://downloads.asterisk.org/pub/telephony/libpri/releases/libpri-1.4.11.5.tar.gz

Execute the following commands under the directory of /usr/src/ in generally, the former three below are used for downloading these three packages and the later three are for unzipping them.

#_wget_http://downloads.openvox.cn/pub/drivers/dahdi-linux-complete/releases/1.3.2/openvox_dahdi-linux-complete-2.4.0+2.4.0.tar.gz

#_wget_http://downloads.asterisk.org/pub/telephony/asterisk/releases/asterisk-1.8.5.0.tar.gz

#_wget_http://downloads.asterisk.org/pub/telephony/libpri/releases/libpri-1.4.11.5.tar.gztibpri-1.4.12.tar.gz

#_tar_-xvzf_openvox_dahdi-linux-complete-2.4.0+2.4.0.tar.gz

# tar –xvzf asterisk-1.8.5.0.tar.gz

# tar –xzvf libpri-1.4.11.5tar.gz

3.2 Installation

1. Hardware detection

# lspci –vvvv

Check the outcome and confirm your system has recognized D110P/D110E. If it has been recognized, “communication controller“ will be displayed in the output information like that:

Figure 3 Hardware detection

If D110P/D110E is not recognized by the system, you have to power off and take out the card, then try to insert it into other PCI or PCI-E slot.

2. Software installation

Some dependencies are crucial. If any of them is absent, the software installation process would not go through successfully. Let’s run “yum install XX“ (XX stands for the dependency’s name) to check the availability of dependencies.

# 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++

# yum install libxml2

If there is no kernel source in the system, users should also install it by running like:

word image 1151

# yum install kernel-devel

If the dependency has been installed, system indicates that nothing to do which means you could go to next one directly. Otherwise, the system will keep on installing it.

Among Libpri, DAHDI and Asterisk, let’s install libpri firstly. Please execute those commands under the directory of /usr/src/ in generally:

# cd libpri-XX

# make

# make install

Change to the directory of dahdi-linux-complete-XX (XX represents DAHDI version), then perform commands one by one to install DAHDI.

# cd /usr/src/dahdi-linux-complete-XX

# make

# make install

# make config

Caution: If there is something wrong after “make“, please refer to HERE. In the url link, the moderator introduces you a method how to patch. After patching, save your changes and exit. Then run “make“ again, if successfully done, it is time for you to install Asterisk.

word image 1152

Please operate those commands to install Asterisk.

# cd asterisk-XX

# ./configure

# make

# make install

# make samples

“make samples” will generate the standard sample configuration file in the directory /etc/asterisk. As a freshman, you should perform “make samples”, that is to say, it is unnecessary to perform “make samples” every time. Because once performed, it will cover the old sample configuration files you have installed.

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3.3 Configuration

1. Driver loading

After compiling and installing DAHDI and Asterisk, please load the driver by running:

# modprobe dahdi

# modprobe wcte11xp

# dahdi_genconf

If there is any error, please trace the cause. Until all errors are clear up, you could execute “dahdi_genconf“ again, and then go to the next step. By running “dahdi_genconf“, it will generate /etc/dahdi/system.conf and etc/asterisk/dahdi-channels.conf automatically. Checking whether the generated files information agrees with your hardware setup, if not, you should modify to your specific requirements. Do not forget to confirm dahdi-channels.conf is included in chan_dahdi.conf, if not, run command:

# echo “#include dahdi-channels.conf” >> /etc/asterisk/chan_dahdi.conf

A part of system.conf which is one of the basic channel configuration files is displayed.

Figure 4 A part of system.conf

2. Country mode modification

In order to match your country pattern, you need to change parameters loadzone and defaultzone to your country. For example, your system is in CHINA, you would like them change to:

loadzone = cn

defaultzone = cn

Some zonedata is available in the file

word image 1154

.. /dahdi-XX/tools/zonedata.c, you can refer to it to match your country mode. Meanwhile, you also need to modify another parameter which is in file /etc/asterisk/indications.conf.

country=cn

A part of file /etc/asterisk/dahdi-channels.conf is showed as below. (Modification, if it is not agree with the hardware setup)

 

Figure 5 A part of dahdi-channels.conf

After modifying the country mode, please execute the following command:

# dahdi_cfg –vvvvvv

The command is used for reading and loading parameters in the configuration file system.conf and writing to the hardware. A part of outputs are showed in the following figure.

Figure 6 Channel map

3. Asterisk initiation

# asterisk –vvvvvvvgc

If Asterisk is already activate, run “asterisk –r“ instead. In the CLI, please run the following command:

localhost*CLI> dahdi show channels

Figure 7 channels show

If DAHDI channels are found, it means they have been loaded into Asterisk successfully. You are going to edit dialplan by your requirements.

4. Dialplan edit

Users must make sure that the context “from-pstn“ and “from-internal“ are in extensions.conf. Here a simple example is given:

# vim /etc/asterisk/extensions.conf

Figure 8 dial plan

Additional function

Users should run command “cat /proc/interrupts“ to check D110P/D110E has independent interrupt. If it shares interrupt with other device, it may cause some problems or even cannot work normally.

Chapter 4 Reference

www.openvox.cn

www.digium.com

www.asterisk.org

www.voip-info.org

www.asteriskguru.com

Tips

Any questions during installation, please consult in our forum or look up for answers from the following websites:

Forum

wiki

Appendix A Specifications

• Weight and size

Weight: 54g

Size: 122.2×63.5×16mm3 (D110P)

119.7×68.8×16mm3 (D110E)

 

• Interfaces

RJ48 connector

PCI Bus: 3.3V or 5V bus slot, PCI 2.2 or above (D110P)

PCI-E ×1, ×2, ×4, ×8, ×16 slot (D110E)

• Environments

Storage temperature: -65 ~ 125°C

Operation temperature: 0 ~ 50°C

Humidity: 10 ~ 90% NON-CONDENSING

• Power consumption

Voltage: 3.3V

Power Dissipation Max:1.2W

• Hardware and software requirements

RAM 128 + MB

Linux kernel 2.4.X or 2.6.X

CPU 800+ MHZ

 

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