Tag Archives: VoIP

Simple and useful asterisk commands…

Below i am going to document some simple and very useful commands for asterisk. These commands will help you gather important information that can help you diagnose an asterisk based system. First enter the asterisk console: asterisk -vvvvvvvvvr Global Commands … Continue reading

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Simple Asterisk Phone System…

Below I detail how to set up a basic asterisk dial plan with 2 extensions, a SIP Trunk provider, and incoming calls ringing both extensions. in /etc/asterisk/sip.conf add: [100] ; extension 100 username=100 secret=100 host=dynamic nat=yes type=friend qualify=yes context=phones [101] ; extension … Continue reading

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Bandwidth Utilised for VoIP

Calculating the bandwidth used for VoIP may seem like a daunting task, however it is rather simple, especially after you’ve understood some principles. VoIP calls consists of 2 main parts. The call management section is the part which gets the … Continue reading

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Manually Configuring a Multicast Paging Ring Group to work with Yealink T20, T22, T26, T28, T32, T38

Be aware that different firmware versions may have different web interface formats and functionality. For further support, please visit Yealink here From 3CX Phone System Ring groups can be used to facilitate multicast paging. Note that 3CX Phone System facilitates multicast … Continue reading

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How to Disable SIP ALG on Netgear Routers

SIP ALG is used to try and avoid configuring Static NAT on a router. Its implementation, however, varies from one router to another, often making it difficult to inter-operate a router with SIP ALG enabled with a PBX. In general, … Continue reading

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