/ The VoIP druid
BuzzThe Canadian manufacturer Aastra will soon officially announce the venue of a new Wi-Fi SIP phone, called 312, even if the net is already buzzing this info. There are already SIP DECT phone at Aastra but since some customers would like to leverage their Wi-Fi infrastructure in order to carry voice, this new product arrive at a good time.
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It could sometimes be useful to be able to send a vocal message to a group of phone with the intercom feature. Most IP phones on the market support this feature which allows a call to be automatically answered and its content pushed to the speaker.
What we propose in this article is a solution to distribute a live message to a specific phone group. Such solutions are available on the net but since we haven’t found a complete functional one, we have built our own one on top of an Asterisk 1.4, the conference application and an automatic dialler written as an AGI.
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Phone line supervision is one of the great and mandatory tools for any enterprise telephony product. Asterisk is proposing this feature based on the SIP protocol tools but each phone (or softphone) is implementing it through a proprietary approach. In addition to the supervision the line pickup tool is important and sometimes not easy to configure.
It is generally simple to supervise a phone line with the SIP toolkit, but in order to pickup the line an interaction with the PBX is required: by hitting the button near the supervised line a call should be placed with a specific prefix. The Aastra 53i phone1 is implementing this feature really easily and targeting the Asterisk solution. This article shows how simple it is to configure.
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