Robert Lister wrote: > Hello, > > I think I have encountered an odd bug in Siemens C460 IP/dect handsets, > which is a bit annoying, and I'm not (yet) sure how to get round it without > lots of hacks. > > Basically, on all external incoming calls, we set: > > exten => s,n,SIPAddHeader(Alert-Info: Bellcore-dr2) > > This causes handsets (i.e. Cisco 7960 / Grandstream / aastra) to set a > different ring cadence so to differentiate between external and internal > calls. > > Other handsets that do not support Alert-Info: just ignore the presence > of this header. > > When this header is set in a call to the C460 IP, it does not alert, in fact > it does not respond to any INVITE requests; asterisk just retries the > requests a few times and then gives up. > > Anyone able to reproduce? I have firmware version 010700000000 / 041.00 > > I suppose as a workaround I could add an astDB entry for these extensions, > and a bit of logic in the dialplan to tell asterisk not to add the header > for extensions that have that flag set. > > > Regards, > > > > Rob > >
I can replicate this behaviour too using an S450IP when an Alert-Info header is present. I have reported the issue to Siemens so hopefully this will be fixed in a firmware update in the near future. cheers, Paul. _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
