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Hi we are currently using Diguim 410p PCI with hardware echo cancelling which plugs into 2 * ISDN 2e boxes. the phones are Cisco 941/921 models all plugged into a separate switch Netgear GS924T 1GB ports we have 20 DDI's When a DDI call comes in and the phone has call forwarding enabled then alls well. The problem I have is when the main phone number has been used and some of the phones have call forwarding enabled the caller gets forwarded around into a loop due to all phone are set-up to receive the main no. The echo problem could be the Cisco phones as I haven't noticed the echo when using a software phone X-lite, we are using the SIP protocol, but I don't know what codex is being used. How would you track down the echo problem, is there anything like wireshark can pick out. How would you query the phone using asterisk? the phone handles voice mail etc OK regards Sam -----Original Message----- From: list-bounces@xxxxxxxxxxxxx [mailto:list-bounces@xxxxxxxxxxxxx]On Behalf Of stinga Sent: 27 February 2008 08:00 To: list@xxxxxxxxxxxx Subject: Re: [LUG] asterisk meeting On 26/02/08 22:22:47, sam@xxxxxxxxxxxxxxxxx wrote: > Hi > > We have used Asterisk for a couple of years now at work but I still > have > some issues with it. > Just wondering if there was going to be an expert on Asterisk at this > meeting, or if it was a try it and see workshop. Depends what you mean by expert! :-) I have used it a lot! > > My main issues that I haven't been able to resolve are: > > the dial plan, How to detect if the SIP phone has call forwarding > enabled/do > not disturb as this causes problems with groups of users, then causes > loop > problems. Where is the call forwarding done? if it is in the phone then you need to query the phone, could be hard. Need to use some sort of api. Or you could get * to do the forwarding which then it would be easy. > > Also we use ISDN 2e which sometimes gets echo problems, this causes > touch > tone problems when using auto mated support lines, as the tones bleed > together and fail to be recognised when pressed. How are you connecting to isdn? isdn card in * or are you using the POT port on the isdn 'box' > > How do you debug echo issues? With lots of trial and error, has been by experience! First id where the echo is coming from -- 'ooroo stinga...(:)-) --------------------------------------------------- Email: stinga@xxxxxxxxxxxxx o You need only two tools. o ///// A hammer and duct tape. If it /@ `\ /) ~ doesn't move and it should, > (O) X< ~ Fish!! use the hammer. If it moves and `\___/' \) ~ shouldn't, use the tape. \\\ --------------------------------------------------- -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.1/1302 - Release Date: 27/02/2008 16:34 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.1/1302 - Release Date: 27/02/2008 16:34 -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html