Group Paging
A group of users can be created with a purpose of receiving voice announcements through the speaker of a telephone set, but it has to be in the waiting mode.
Let’s look at Grandstream ATA HandyTone-502 Analog Telephone Adapter the latest product in the HandyTone ATA series and Grandstream VoIP product line.
Nubitel
Make cheap international phone calls from any where in europe using our cheap calling cards brands, covering Africa, Middle east, Asia and the Western world. Also customized services available for resedentials customers, check our Products page for more d
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