Hi, i'm sorry for late reply.
I asked and yes, we are running the latest firmware on this phone. Yes, yesterday we set the default port range used for RTP on the phone to be 30000-31000. We still get from time to time the problem with no audio. Now we set on the router all packages from these ports to be forwarded to the phone. Following the manual for incoming calls. Maybe this will help. What is your opinion, is it possible this to help about the audio problem? We will try later to put the phone to use also public address without router to see how it will work for inbound and outbound calls. Yes, Tony. I agree with you about STUN and possibility to cause problems. The phone right now is remote. Using STUN was the only way to solve no audio problem on inbound calls. Anyway we will continue with tests and try to find out how to solve this problem permanently. On Wed, 2010-01-27 at 08:26 -0500, Tony Graziano wrote: > Are you running their latest firmware? They've has a release since > July. > > > http://gigaset.com/shc/0,1935,hq_en_0_145510_rArNrNrNrN_variation% > 253A-5_pageType%253Adownloads_imagePos%253A0,00.html#content > > The manual for these shows a central provisioning server through an > "approved list" of providers that they store. It does not seem to have > a local provisioning process. Their manual says: > > > http://download.gigaset.com/repository/1461/146151/A31008-M1916-R601-2-TE19_en_International.pdf > > > Page 138-- Says STUN needs outbound traffic to be allowed, symmetric > nat to be in place. If the phone is "remote", this could cause a > problem as the firewall where it is needs to be able to do "symmetic > port nat", if I understand siemens statement. Also, if it is remote, > did you match the phone RTP ports to sipxbridges (default > 30000-31000)? > > > Nice looking phone, but I don't know I would want that in an > enterprise, sounds like too much trouble already. If you get it > working, a wiki posting on it would be handy. I know others have asked > about Siemens gigasets on here. > > On Wed, Jan 27, 2010 at 8:01 AM, Scott Lawrence > <[email protected]> wrote: > On Wed, 2010-01-27 at 14:37 +0200, [email protected] wrote: > > Thanks for reply and trying to help me. > > > > We have this phone there: Siemens Gigaset C470IP > > I received phone settings and we are trying to understand > why it is > > rejecting the calls and why from time to time the audio is > missing. But > > this is only for inbound calls. For outgoing calls > everything is ok. > > > > Some time it is working, some times not (no audio). > > > > This phone is very interesting. There is no audio at all in > inbound > > calls if we don't set STUN server on it. But we have audio > on outbound > > calls without using STUN. So we have set to use stun server > on this > > phone. > > In general, using STUN with sipXecs is neither needed nor > helpful, and > can cause problems. > > > These are these settings on this phone. Is it possible some > of these to > > produce the problems? > > Not that I can see. I'd suggest setting the DTMF to "RFC > 2833", since > that's what sipXecs requires. > > Does the phone log anything when it's rejecting a call? You > may have to > contact Siemens for help. > > > > > > _______________________________________________ > sipx-users mailing list [email protected] > List Archive: http://list.sipfoundry.org/archive/sipx-users > Unsubscribe: > http://list.sipfoundry.org/mailman/listinfo/sipx-users > sipXecs IP PBX -- http://www.sipfoundry.org/ > > > > > -- > ====================== > Tony Graziano, Manager > Telephone: 434.984.8430 > Fax: 434.984.8431 > > Email: [email protected] > > LAN/Telephony/Security and Control Systems Helpdesk: > Telephone: 434.984.8426 > Fax: 434.984.8427 > > Helpdesk Contract Customers: > http://www.myitdepartment.net/gethelp/ > > Why do mathematicians always confuse Halloween and Christmas? > Because 31 Oct = 25 Dec. > > _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/
