Tag Archives: Asterisk

Fax & Voip – Part 2/3

Codec Translation I have already mentioned before. In the path caller->called codecs can change several times, and every transformation can introduce distortion and delay. To minimize fax issues all the legs involved must be using the same codec to avoid … Continue reading

Posted in Asterisk | Tagged , , , , | Leave a comment

Fax & Voip – Part 1/3

Certainly there are huge benefits to VoIP, and certainly there will be many people who will be wise to use Voip PBX trunk instead of traditional phone lines. But using Voip PBX you may start to notice that faxing just … Continue reading

Posted in Asterisk | Tagged , , , , , | Leave a comment

Add Fax capabilities in Asterisk >=13

Beginning with Asterisk 13 Digium will no longer make available the res_fax_digium module (FFA or commercial versione): if you want fax capabilities you should use the res_fax_spandsp module. Yes, I know, it is possible to use IAX modem, but sometimes … Continue reading

Posted in Asterisk | Tagged , , | Leave a comment

How to configure a Nortel/Avaya 4550T-PWR switch – Part 2/2

In this part I’ll show the configuration steps to obtain the situation in this network schema. This is a really simple and real situation: a simple network using two separated VLAN one for Data and the other for Voip. Att.: … Continue reading

Posted in Avaya, Hardware | Tagged , , | Leave a comment