Re: [Asterisk-Users] strange wave like noise on sip handset
On Sat, 2005-10-01 at 14:47 +0100, Angus Comber wrote: > No it happens on our asterisk and at a customers. Not that noticeable but > not crystal clear. Didn't happen on a Snom 190. [Snip] > Sipura SPA-841 - when receiving an incoming call echoy for about 2-3 seconds > at start of call then echo went away. Remote end did not hear any echo. > Also wave like hiss as per my message. Angus - does the SPA-841 have AGC? Turn it off if you can. Brett ___ --Bandwidth and Colocation sponsored by Easynews.com -- 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
Re: [Asterisk-Users] strange wave like noise on sip handset
We have all Cisco - and they are pricey, but work great otherwise. Both with chsn_sccp and SIP. 05 -> 70s and a few 20s -Greg On Sat, 2005-10-01 at 14:47 +0100, Angus Comber wrote: > No it happens on our asterisk and at a customers. Not that noticeable but > not crystal clear. Didn't happen on a Snom 190. > > I have been working my way through IP handsets with these results: > > Grandstream BT-100 series. OKish for the price but a bit echoy. > > Grandstream GXP-2000 - OK but if used on hands free a bit echoy. > > Snom 190. Very clear. However, on a customer site they complained that > full volume was still not load enough. But didn't extensively test. > > Sipura SPA-841 - when receiving an incoming call echoy for about 2-3 seconds > at start of call then echo went away. Remote end did not hear any echo. > Also wave like hiss as per my message. > > Next phones to try are a Polycom 300 and a CISCO 7940. > > I suppose it depends on how demanding customer is. I would hope that I can > find a phone with no echo / hiss /other problems. Perhaps I need to think > about using channel banks/FXS cards and analog phones! But would prefer IP > phones for flexibility etc. > > Anyone found a perfect IP phone? > > Angus > > > - Original Message - > From: "Leif Madsen" <[EMAIL PROTECTED]> > To: "Asterisk Users Mailing List - Non-Commercial Discussion" > > Sent: Saturday, October 01, 2005 2:33 PM > Subject: Re: [Asterisk-Users] strange wave like noise on sip handset > > > On 9/30/05, Angus Comber <[EMAIL PROTECTED]> wrote: > > On a Sipura SPA-841 handset (and also at other end) you hear a sea wave > > like > > sound - it gets louder then softer and continually repeats. > > > > I don't remember hearing this when using other handsets. But what is this > > effect? How can I reduce it? > > I heard the same thing from a remote users Polycom 501 - seems it was > sitting too close to a fan in a computer. Could it be something > similar to that? > > Just a thought since this happened to me yesterday :) > > -- > Leif Madsen - http://www.leifmadsen.com > Astricon 2005, Anaheim, CA, October 12-14 > http://www.astricon.net > http://www.oreilly.com/catalog/asterisk > ___ > --Bandwidth and Colocation sponsored by Easynews.com -- > > 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 > > > ___ > --Bandwidth and Colocation sponsored by Easynews.com -- > > 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 ___ --Bandwidth and Colocation sponsored by Easynews.com -- 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
Re: [Asterisk-Users] strange wave like noise on sip handset
No it happens on our asterisk and at a customers. Not that noticeable but not crystal clear. Didn't happen on a Snom 190. I have been working my way through IP handsets with these results: Grandstream BT-100 series. OKish for the price but a bit echoy. Grandstream GXP-2000 - OK but if used on hands free a bit echoy. Snom 190. Very clear. However, on a customer site they complained that full volume was still not load enough. But didn't extensively test. Sipura SPA-841 - when receiving an incoming call echoy for about 2-3 seconds at start of call then echo went away. Remote end did not hear any echo. Also wave like hiss as per my message. Next phones to try are a Polycom 300 and a CISCO 7940. I suppose it depends on how demanding customer is. I would hope that I can find a phone with no echo / hiss /other problems. Perhaps I need to think about using channel banks/FXS cards and analog phones! But would prefer IP phones for flexibility etc. Anyone found a perfect IP phone? Angus - Original Message - From: "Leif Madsen" <[EMAIL PROTECTED]> To: "Asterisk Users Mailing List - Non-Commercial Discussion" Sent: Saturday, October 01, 2005 2:33 PM Subject: Re: [Asterisk-Users] strange wave like noise on sip handset On 9/30/05, Angus Comber <[EMAIL PROTECTED]> wrote: On a Sipura SPA-841 handset (and also at other end) you hear a sea wave like sound - it gets louder then softer and continually repeats. I don't remember hearing this when using other handsets. But what is this effect? How can I reduce it? I heard the same thing from a remote users Polycom 501 - seems it was sitting too close to a fan in a computer. Could it be something similar to that? Just a thought since this happened to me yesterday :) -- Leif Madsen - http://www.leifmadsen.com Astricon 2005, Anaheim, CA, October 12-14 http://www.astricon.net http://www.oreilly.com/catalog/asterisk ___ --Bandwidth and Colocation sponsored by Easynews.com -- 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 ___ --Bandwidth and Colocation sponsored by Easynews.com -- 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
Re: [Asterisk-Users] strange wave like noise on sip handset
On 9/30/05, Angus Comber <[EMAIL PROTECTED]> wrote: > On a Sipura SPA-841 handset (and also at other end) you hear a sea wave like > sound - it gets louder then softer and continually repeats. > > I don't remember hearing this when using other handsets. But what is this > effect? How can I reduce it? I heard the same thing from a remote users Polycom 501 - seems it was sitting too close to a fan in a computer. Could it be something similar to that? Just a thought since this happened to me yesterday :) -- Leif Madsen - http://www.leifmadsen.com Astricon 2005, Anaheim, CA, October 12-14 http://www.astricon.net http://www.oreilly.com/catalog/asterisk ___ --Bandwidth and Colocation sponsored by Easynews.com -- 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
