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Posted By: switchdoctor Samsung Ip phones - 06/30/08 03:43 PM
is anyone happy with samsungs ip product? I put them in tunnels, put them out on the internet using the self tunneling technology but i must say there is always an issue...one way audio or intermittant booting..samsung insists that the ap works fine...I really would like to hear from other techs about what they have found.
Posted By: MarcHaycook Re: Samsung Ip phones - 06/30/08 04:26 PM
Only problem I've had is when using a large number of IP Phones on a Public network. Set up a VPN tunnel and changed to a Private network and the problems are gone.
Posted By: switchdoctor Re: Samsung Ip phones - 06/30/08 04:47 PM
do you also have pc s running on your vpn? if its just phones its ok, but add computers and the audio quality is shot to hell
Posted By: phonman123 Re: Samsung Ip phones - 06/30/08 05:05 PM
One thing I do know is that QOS has to be set up properly. If not, there will be problems.
Posted By: switchdoctor Re: Samsung Ip phones - 06/30/08 05:50 PM
that is part of the problem, some routers dont support qos and if they do once the packets are encapsulated and routed through the tunnel the qos tagging goes out the window....I really dont have any issues if i keep the ip phones on the local area network, but when i remote on the internet its always a nightmare. any suggestions?
Posted By: MarcHaycook Re: Samsung Ip phones - 07/01/08 01:30 PM
Yes there are PC's on the same VPN tunnel and QOS is not setup... no problems. Unless you are talking about a large network, you shouldn't have any problems.
Posted By: KX-T308 Re: Samsung Ip phones - 07/01/08 02:40 PM
Do you lot out there in the US of A have isp that only do voice. We have a few over here and am currently getting a few sites set up with this isp.
Posted By: Rezen Re: Samsung Ip phones - 07/02/08 12:56 AM
I am sorry for stupid question.
What of bits order are in the TOS field (MGI DSP Option)?
High bit is left, isn't it?

What type of TOS are you use usually for best quality of voice?


**removed mmc above user/admin and replaced with text**
Posted By: switchdoctor Re: Samsung Ip phones - 07/07/08 03:48 AM
CIT,

what r u using for internet access? t1 or dsl? whats your upload and download speed. what kind of routers r u using?
Posted By: switchdoctor Re: Samsung Ip phones - 07/07/08 04:00 AM
the tos code would be either whats specified in your router programming or the diffserv code broken down in octal
Posted By: switchdoctor Re: Samsung Ip phones - 07/07/08 04:02 AM
rezen are you having remote ip phone issues? what r they?
Posted By: Rezen Re: Samsung Ip phones - 07/08/08 01:16 AM
I want setup TOS for minimal delay.
What value is correct for TOS field of Samsung
00010000 or 00001000?
Posted By: MarcHaycook Re: Samsung Ip phones - 07/09/08 02:16 PM
They are using a partial T1 at 1MB up/down. I have a Cisco Pix on one side and a Cisco 831 on the other side.
Posted By: Rezen Re: Samsung Ip phones - 07/10/08 12:36 AM
Solved
For RTP need EF=0xB8
For Signal packets AF31=0x68 (Impossible setup now frown )
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