Re: OT : user in our Building can't heare the user in the other

Voice stream is RTP which is carried inside UDP.

On Wed, Jun 22, 2011 at 4:50 PM, -Hammer- <bhmccie_at_gmail.com> wrote:

> OK. Being a firewall guy I love when people blame the firewall. I'm not
> saying it's not the firewall but isn't RTP a TCP transport layer
> protocol? I'm not a voice guy so please don't bash me too much. Do the
> phones make independent connections (like a send and receive channel) to
> each other? Which part is stateless?
>
> -Hammer-
>
>
>
> On 06/22/2011 03:28 PM, JB Poplawski wrote:
> > Determine the IP addresses of the phones at each site (assuming the
> > whole subnet needs to be opened up).
> > Verify UDP from their side to your side is valid. If you can't hear
> > the other building, the RTP stream is being blocked coming your way.
> >
> > HTH,
> > JB
> >
> > On Wed, Jun 22, 2011 at 3:17 PM, Joe Astorino<joeastorino1982_at_gmail.com>
> wrote:
> >
> >> Sounds like a firewall issue. I would investigate that the firewall is
> >> allowing the proper RTP voice packets from building2 back to building1
> like
> >> JB said. Now, the political implications of said task might be harder
> than
> >> it sounds depending on your relationships with other teams and who runs
> the
> >> firewall lol
> >>
> >> On Wed, Jun 22, 2011 at 4:07 PM, wael Ahmed<wsadani_at_gmail.com> wrote:
> >>
> >>
> >>> Hi GS
> >>> i have a problem here and i need your sugession
> >>> this is the senario
> >>>
> >>> iptuser(our Building)--------access
> >>>
> >>>
> switch1----corswitche1----------------firewall--------coreswitch2---------acess
> >>> switch2------ iptuser(otherbuilding)
> >>>
> >>>
> >>> The unified Communication conected to coreswitch1
> >>>
> >>> coreswitch1 connecetd to firewall by Fiber it is end 10.20.91.100 the
> >>> firewall end 10.20.91.105
> >>> My responsability till only coreswitch1 and there is seperated team to
> the
> >>> firewall coreswitch2
> >>>
> >>> ipt user(our Building) can heare each other
> >>> ipt user (other Building ) can heare eah other
> >>> ipt user (other Building ) can heare ipt(our Building)
> >>> ipt user (our Building) can't heare iptuser(othe Building)
> >>>
> >>>
> >>>
> >>> voice vlans are in access switch 1 and coreswitch 1 vlan 230
> >>> voive vlan are in acce switch 2 and coreswitch2 vlan 111
> >>> any idea
> >>> thanks
> >>>
> >>>
> >>> Blogs and organic groups at http://www.ccie.net
> >>>
> >>> _______________________________________________________________________
> >>> Subscription information may be found at:
> >>> http://www.groupstudy.com/list/CCIELab.html
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>
> >> --
> >> Regards,
> >>
> >> Joe Astorino
> >> CCIE #24347
> >> Blog: http://astorinonetworks.com
> >>
> >> "He not busy being born is busy dying" - Dylan
> >>
> >>
> >> Blogs and organic groups at http://www.ccie.net
> >>
> >> _______________________________________________________________________
> >> Subscription information may be found at:
> >> http://www.groupstudy.com/list/CCIELab.html
> >>
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>

-- 
Regards,
Joe Astorino
CCIE #24347
Blog: http://astorinonetworks.com
"He not busy being born is busy dying" - Dylan
Blogs and organic groups at http://www.ccie.net