Respuesta de Digium a Sangoma
Hace unos días, comenté que Sangoma "presentaba" la solución a los faxes sobre T1/E1.
Kevin Fleming de Digium comenta que no es del todo cierta la noticia. Aquí os dejo el extracto:
Sangoma and Fax
As you all probably are aware, Sangoma recently made a press release about their new faxing abilities. Here is a good response that you can use from our Director of Software Technologies, Kevin Fleming:
While I won't dispute that this is an improvement, stating that FAX via analog port on a PBX through a T1/E1 interface is totally unreliable/unusable is complete FUD (Fear, Uncertainty, and Doubt). There are hundreds/thousands of people doing that already and, except in very rare cases, it works just fine... they are more likely to run into FAX machine incompatibility than they are the inability to get a FAX transmitted successfully this way.
On top of that, this 'solution' cannot completely solve the problem, because the only thing it does is provide a clock source for the analog card. The TDM data still needs to pass from the T1/E1 card across the PCI bus, into the operating system kernel and then the drivers/applications, then back out the PCI bus and into the analog interface card. There are still *huge* areas where the software or the load on the system could cause FAX transmission to fail even with this shared clocking arrangement.
This is a strong response from a recognized community leader and could help combat any questions about our current ability to handle fax.
Vamos, que para Digium Sangoma tiene la nariz un poco larga ;)
Gracias Nacho por el aviso
Kevin Fleming de Digium comenta que no es del todo cierta la noticia. Aquí os dejo el extracto:
Sangoma and Fax
As you all probably are aware, Sangoma recently made a press release about their new faxing abilities. Here is a good response that you can use from our Director of Software Technologies, Kevin Fleming:
While I won't dispute that this is an improvement, stating that FAX via analog port on a PBX through a T1/E1 interface is totally unreliable/unusable is complete FUD (Fear, Uncertainty, and Doubt). There are hundreds/thousands of people doing that already and, except in very rare cases, it works just fine... they are more likely to run into FAX machine incompatibility than they are the inability to get a FAX transmitted successfully this way.
On top of that, this 'solution' cannot completely solve the problem, because the only thing it does is provide a clock source for the analog card. The TDM data still needs to pass from the T1/E1 card across the PCI bus, into the operating system kernel and then the drivers/applications, then back out the PCI bus and into the analog interface card. There are still *huge* areas where the software or the load on the system could cause FAX transmission to fail even with this shared clocking arrangement.
This is a strong response from a recognized community leader and could help combat any questions about our current ability to handle fax.
Vamos, que para Digium Sangoma tiene la nariz un poco larga ;)
Gracias Nacho por el aviso
