[asterisk-biz] Is ISP Blocking VoIP

[smbPBX]

I also suddenly had problems two Verizon DSL customers!
I asked them to reboot their routers and ATAs and the problem went away>
Not saying that that is the same problem but sharing the experience!

Regards,
smbPBX

On 17 Jan 2006 13:16:19 -0500, J Thomas <jthomas at cequip.com> wrote:
>
> I provide hosted PBX service to businesses. About a dozen of them. All
> of them were working great, but this morning suddenly, 3 places have
> gone dead. None of the phones from those three places would register
> with my server :-(
>
> As the remaining 10 places are working just fine, hence I am reluctant
> to blame this failure on Asterisk.
>
> Changes is firewall setting at customer site could be a cause, but very
> unlikely that three of them decided to do that at the same time.
> Moreover, I specifically asked all three of them and none of them have
> messed up with their routers.
>
> Only thing common among them is that they all have business DSL from
> Verizon. Could it be that, possibly inadvertently, Verizon is doing
> something that is blocking VoIP? In any case, how to to find out why
> VoIP is not working?
>
> In this case, all the clients have Polycom phones, about 30 among all
> three.
>
> Thanks,
> -- jt
>
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--
Regards,

smbPBX
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