Nicolas Bougues
2004-Feb-23 01:41 UTC
[Asterisk-Users] About Grandstream ATA-286 and ring voltage
Dear all, My GS ATA-286, which otherwise work well, seem to be unable to ring a fax (or at least, some kind of fax). The fax basically doesn't detect the ring. I measured with a volt meter about 45V during the ring pulse out of the ATA. This looks fairly low to me (supposed to be in the 70V+ range, isn't it ?). The adapter works with evey kind of phone I tried, but did not work with two different fax machines. Am I simply out of luck with these fax ? Does my ATA look defective (tried two of them, however) ? -- Nicolas Bougues Axialys Interactive
The only adapter that I know of that allows you to modify the ring voltage is the Sipura analog SIP adapter. I was able to get my old fax machine to answer after jacking up the ring voltage to 90V. http://www.sipura.com MATT--- -----Original Message----- From: Nicolas Bougues [mailto:nbougues-listes@axialys.net] Sent: Monday, February 23, 2004 3:41 AM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] About Grandstream ATA-286 and ring voltage Dear all, My GS ATA-286, which otherwise work well, seem to be unable to ring a fax (or at least, some kind of fax). The fax basically doesn't detect the ring. I measured with a volt meter about 45V during the ring pulse out of the ATA. This looks fairly low to me (supposed to be in the 70V+ range, isn't it ?). The adapter works with evey kind of phone I tried, but did not work with two different fax machines. Am I simply out of luck with these fax ? Does my ATA look defective (tried two of them, however) ? -- Nicolas Bougues Axialys Interactive _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
John Brown (CV)
2004-Feb-25 20:26 UTC
[Asterisk-Users] About Grandstream ATA-286 and ring voltage
rumor has it that new firmware will let you adjust the ringer voltage on HT-286 / HT-486 On Mon, Feb 23, 2004 at 09:41:24AM +0100, Nicolas Bougues wrote:> Dear all, > > My GS ATA-286, which otherwise work well, seem to be unable to ring a > fax (or at least, some kind of fax). The fax basically doesn't detect > the ring. > > I measured with a volt meter about 45V during the ring pulse out of > the ATA. This looks fairly low to me (supposed to be in the 70V+ > range, isn't it ?). > > The adapter works with evey kind of phone I tried, but did not work > with two different fax machines. Am I simply out of luck with these > fax ? Does my ATA look defective (tried two of them, however) ? > > -- > Nicolas Bougues > Axialys Interactive > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users