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Asterisk Modules

Administrator Guide


Revision: 65

Distribution: Debian / Ubuntu

Created: February 7, 2015

Last updated: May 7, 2021

Author: Arsen Chaloyan


Table of Contents

1 Overview.. 3

1.1 Applicable Versions 3

1.2 Supported Distributions. 3

1.3 Authentication. 3

2 Installing Deb Packages Using Apt-Get 4

2.1 Repository Configuration. 4

2.2 GnuPG Key. 4

2.3 Repository Update. 4

2.4 Installation of Asterisk. 4

2.5 Installation of Applications Suite (app-unimrcp) 5

2.6 Installation of Speech Resource (res-speech-unimrcp) 5

3 Installing Deb Packages Manually. 6

3.1 Package List 6

3.2 Package Dependency Graph. 7

3.3 Package Installation Order 8



1       Overview

This guide describes how to obtain and install binary packages of Asterisk and UniMRCP modules on Debian-based distributions. The document is intended for system administrators and developers.

1.1      Applicable Versions

Instructions provided in this guide are applicable to the following versions.


UniMRCP 1.6.0 and above

Asterisk 16 and above

1.2      Supported Distributions

UniMRCP binary packages are currently available only for x86_64 (64-bit) architecture.



Operating System


End of Support

Ubuntu 16.04 LTS (xenial)

February 2017

March 2021

Ubuntu 18.04 LTS (bionic)

May 2019


Ubuntu 20.04 LTS (focal)

May 2021



Note: packages for other distributions can be made available upon request. For more information, contact services@unimrcp.org.

1.3      Authentication

UniMRCP binary packages are available to authenticated users only. In order to register a free account with UniMRCP, please visit the following page.




Note: a new account needs to be verified and activated prior further proceeding.


2       Installing Deb Packages Using Apt-Get

Using the APT package handling utility (apt-get) is recommended for installation of UniMRCP binary packages.

2.1      Repository Configuration

The content of a typical configuration file of the APT repository, to be placed in /etc/apt/sources.list.d/unimrcp.list, is provided below.


deb [arch=amd64] https://username:password@unimrcp.org/repo/apt/ distr main asterisk-16


The username and password fields included in the HTTPS URI must be replaced with the corresponding account credentials.

The distr field must be replaced with the corresponding distribution code name such as bionic.


The repository provides the following components:

         main packages containing UniMRCP and its dependencies

         asterisk-16 packages containing Asterisk 16 and corresponding UniMRCP modules

2.2      GnuPG Key

For verification of binary packages, UniMRCP provides a public GnuPG key, which can be retrieved and installed as follows.


wget -O - https://unimrcp.org/keys/unimrcp-gpg-key.public | sudo apt-key add -


2.3      Repository Update

In order to check for updates and apply the changes in the APT configuration, use the following command.


sudo apt-get update


2.4      Installation of Asterisk

In order to install Asterisk and related modules, the following commands can be used.

sudo apt-get install asterisk


As a result, yum will check for and install all the required components, including the packages for Asterisk.

2.5      Installation of Applications Suite (app-unimrcp)

In order to install the app-unimrcp module, which provides a suite of MRCP applications for Asterisk, the following command can be used.


sudo apt-get install asterisk-app-unimrcp


As a result, apt-get will check for and install all the required components, including the packages for Asterisk and UniMRCP client.

2.6      Installation of Speech Resource (res-speech-unimrcp)

In order to install the res-speech-unimrcp module, which provides an MRCP implementation of the Asterisk Speech Recognition Interface, the following command can be used.


sudo apt-get install asterisk-res-speech-unimrcp


As a result, apt-get will check for and install all the required components, including the packages for Asterisk and UniMRCP client.


3       Installing Deb Packages Manually

UniMRCP deb packages can be installed manually using the dpkg utility. Note, however, that the system administrator should take care of package dependencies and install all the packages in appropriate order.


The deb packages have the following naming convention:





         packagename is the name of a package

         universion is the UniMRCP version

         astversion is the Asterisk version

         distr is the distribution code name (trusty, xenial, )

         arch is the architecture (amd64, i386, all, )

3.1      Package List

The following is a list of deb packages required for installation of UniMRCP modules for Asterisk, including UniMRCP dependencies.


Package Name





A suite of MRCP applications.



An MRCP implementation of Generic Speech Recognition Interface of Asterisk.



Compound Asterisk package.



Configuration files for Asterisk.



Source code documentation for Asterisk.



Development files for Asterisk.



DAHDI devices support for Asterisk.



Loadable modules for Asterisk.



Shared libraries and sample applications of the client.



Development kit of the client.



Data common for the client and the server.



Development kit of the common client and server data.



UniMRCP edition of the Apache Portable Runtime (APR) library.



Development kit of the corresponding APR library.



UniMRCP edition of the Apache Portable Runtime Utility (APU) library.



Development kit of the corresponding APR-Util library.



UniMRCP edition of the Sofia SIP library.



Development kit of the corresponding Sofia SIP library.


The respective packages for each of the components can be obtained from the UniMRCP website by visiting the download area having logged in to your account.




3.2      Package Dependency Graph

The following is a graph of package dependencies.













3.3      Package Installation Order

Packages for the APR, APR-Util and Sofia-SIP libraries must be installed first.


sudo dpkg --install uniapr_$universion-$distr_$arch.deb

sudo dpkg --install uniapr-util_$universion-$distr_$arch.deb

sudo dpkg --install unisofia-sip_$universion-$distr_$arch.deb


Then, packages for the common data and the client library should follow.


sudo dpkg --install unimrcp-common_$universion-$distr_$arch.deb

sudo dpkg --install unimrcp-client_$universion-$distr_$arch.deb


Then, the Asterisk packages should follow.


sudo dpkg --install asterisk-modules_$astversion-$distr_$arch.deb

sudo dpkg --install asterisk-config_$astversion-$distr_$arch.deb

sudo dpkg --install asterisk _$astversion-$distr_$arch.deb


Finally, based on your requirements, either app-unimrcp and/or res-speech-unimrcp packages can be installed.


sudo dpkg --install asterisk-app-unimrcp_$universion~$astversion-$distr_$arch.deb

sudo dpkg --install asterisk-res-speech-unimrcp_$universion~$astversion_$distr.$arch.deb


The same order should be considered for the installation of the corresponding development packages.