ScopTEL TM IP PBX Software Sangoma Transcoding Installation
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ScopTELTM
IP PBX SoftwareSangoma Transcoding Installation
www.scopserv.com
Purpose of Document
• Depending on the Sangoma Hardware Transcoding SKU the solution can support between 30 and 4000 simultaneous G.729 sessions.
• Hardware transcoding off loads CPU cycles from the host CPU and does not require software G.729 licenses
• Hardware transcoding reduces transcoding delay.
• High Compression CODEC’s allow more concurrent calls through Internet connections with modest bandwidth.
• Voice Transcoding can reduce costs where bandwidth is expensive and VoIP is desired to further reduce costs and increase mobility.
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Example: Sangoma D-150
• D-150 Box installed in local LAN communicates with ScopTEL using Ethernet by IP address.• Each D-150 Scales from 30 to 400 simultaneous G.729 sessions and can be ‘stacked’ using a single Base IP Octet• One ScopTel server must be configured in SNG-TC server mode• Additional ScopTel servers on this network can share the SNG-TC server and D-150 cluster when configured to
Connect to remote SNG-TC server
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CODEC SUPPORT • G.711• GSM-FR • G.722• GMS-EFR • G.722.1 (HD Voice)• G.726 • G.729AB• iLBC
Sample Applications
• Call Centers and Remote Agent Pools• Hosted iPBX / IP Centrex• Distributed PBX• IP Network Peering• SIP Trunking• VoIP Gateways
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Pre-requisites
• scopserv-server 2.4.1 package• You must be using minimum version scopserv-telephony 2.6.18-2.rpm• Internet connection to download installation packages• D-150 with Boxed Enclosure
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• Preinstall tasks:
• Switch your running version of Asterisk using these commands depending on which version of Asterisk you wish to use
• asterisk-switch --1.8
• asterisk-swtich --11
• asterisk-swtich --13
• Before deciding which version to use its recommended to check the status of each Asterisk release
• https://wiki.asterisk.org/wiki/display/AST/Asterisk+Versions
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• Login to the server and navigate to : Server>Packages Manager>Versions Information
• Scroll down until you see wanpipe-sng-tc• If the package is not already installed then Click to
Install
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Installation Summary
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Post Install Commands:
Login as root from a console and type these commands to finish compiling codec_sangoma.so
cd /usr/src/wanpipe-sng-tcmake cleanmake asteriskmake install
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Enabling the SNG-TC server• Navigate to Telephony>Configuration>Channels>Media
Transcoding and Edit• Enable SNG-TC server? : Yes• Select the Network Interface that matches the location of your
D-150• Choose a Base IP Octet that will not conflict with any DHCP
scope or static IP address• Choose the desired CODEC’s• Save
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Connect to remote SNG-TC server (optional)This mode allows a remote ScopTel to share transcoding hardware• Navigate to
Telephony>Configuration>Channels>Media Transcoding and Edit
• Server URL :You must enter http://<LAN IP of machine hosting sngtc_server>:<Port of machine hosting sngtc_server>/
• RTP IP Address: By default, the IP address used for RTP transcoding sessions is automatically detected. You can force the IP to use by entering the LAN IP or FQDN of ScopTEL sngtc client.
• Choose the desired CODEC’s• Save
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• Navigate to
Telephony>Configuration>Channels>Codecs
• Check the Set Codec Preferred Order? [x]
• Check the Set Default Codec selection? [x]
• Choose the preferred order and enable the desired
Codecs in the list
• Ignore the G.729 (Not Installed) warning as this only
applies to software CODEC’s
• Save
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• Navigate to Telephony>Configuration>Extensions>
• Edit: <extension>>Phone Options• Check the G.729 CODEC option• If you want to use only G.729 then uncheck all
other CODEC’s• Ignore the G.729 (Not Installed) warning as this
only applies to software CODEC’s• Save
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• Navigate to Telephony>Configuration>Interfaces>VoIP Accounts
• Edit: <VoIP Account>>Options• Check the G.729 CODEC option• If you want to use only G.729 then uncheck
all other CODEC’s• Ignore the G.729 (Not Installed) warning as
this only applies to software CODEC’s• Save
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• Navigate to Telephony>General• Commit• Edit: Services
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• Check the box to enable the Sangoma Media Transcoding (SNG TC) daemon
• Apply Change
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• If the Sangoma Media Transcoding (SNG TC) daemon is not running then start it• If the Sangoma Media Transcoding (SNG TC) daemon is running then Restart Service• You must restart the Telephony Server for the Sangoma Media Transcoding (SNG TC) daemon to take effect.
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