[cisco-voip] T1 dropoffs.
peter.casanave at us.army.mil
peter.casanave at us.army.mil
Tue Jul 20 00:38:15 EDT 2004
Wes,
We are currently are using H323. We do not have this command inputed "no mgcp timer receive-rtcp" in our script. I did the debug command and it resulted in no displayed output. Any other ideas?
V/R,
PETER CASANAVE
SSG, USA
BBN Platoon Sergeant
----- Original Message -----
From: Wes Sisk <wsisk at cisco.com>
Date: Monday, July 19, 2004 5:59 pm
Subject: RE: [cisco-voip] T1 dropoffs.
> Peter,
>
> A 'debug voip ccapi inout' on the 3745 should show the timer that
> is popping
> and causing the call to be torn down. Is the VOIP control
> protocol h323 or
> MGCP?
>
> Also, what is the originating VOIP device?
>
> IPPhones do not do RTCP so the IOS gateways will timeout on non-
> receipt of
> RTCP if "no mgcp timer receive-rtcp" is not configured in the gateway.
>
> sample config:
> http://www.cisco.com/en/US/partner/tech/tk652/tk701/technologies_configurati
> on_example09186a008022eaa3.shtml
>
> /Wes
>
> > -----Original Message-----
> > From: cisco-voip-bounces at puck.nether.net
> > [cisco-voip-bounces at puck.nether.net]On Behalf Of
> > peter.casanave at us.army.mil
> > Sent: Sunday, July 18, 2004 7:47 AM
> > To: cisco-voip at puck.nether.net
> > Cc: Voll, Scott
> > Subject: [cisco-voip] T1 dropoffs.
> >
> >
> > I have been stuck on this issue for a few days. I am running two
> > T1 CAS interfaces off my 3745 into an unnamed military PBX. Have
> > my T1s built using DS0-groups emulating ISDN switch-type of 5ESS.
> > I am able to process call thru the PBX but they drop off at 50
> > seconds to the "T." The weird thing is I only have this issue on
> > calls originating from the VoIP side. Remote calls calling my IP
> > phones work great. I was just wondering if anyone has seen this
> > before. I know it my be a PBX issue.
> >
> > V/R,
> > PETER CASANAVE
> > SSG, USA
> > BBN Platoon Sergeant
> >
> > ----- Original Message -----
> > From: "Voll, Scott" <Scott.Voll at wesd.org>
> > Date: Thursday, July 15, 2004 11:36 pm
> > Subject: RE: [cisco-voip] Need Help Configuring Cat2924XL
> >
> > > Do you have to run it as a trunk on the 2924?
> > >
> > > Our 3550's look like this:
> > >
> > > interface FastEthernet0/2
> > > switchport access vlan 10
> > > switchport mode dynamic desirable
> > > switchport voice vlan 102
> > > mls qos trust cos
> > > wrr-queue cos-map 1 0 1
> > > wrr-queue cos-map 2 2 3
> > > wrr-queue cos-map 3 4
> > > wrr-queue cos-map 4 5 6 7
> > > priority-queue out
> > > spanning-tree portfast
> > >
> > > PC's connected to Phones and everything works.
> > >
> > > Scott
> > >
> > > PS. Simon, are you using CM and what version if so?
> > > I had some problems with phones on the wrong vlan until the
> firmware> > upgraded on the phone. Then they worked just fine.
> > >
> > > -----Original Message-----
> > > From: Simon Hamilton-Wilkes [simon at jettis.com]
> > > Sent: Thursday, July 15, 2004 12:27 PM
> > > To: 'Anthony Mendoza'; cisco-voip at puck.nether.net
> > > Subject: RE: [cisco-voip] Need Help Configuring Cat2924XL
> > >
> > > The voice interfaces should look something like this:
> > > interface FastEthernet0/5
> > > switchport access vlan 416
> > > switchport trunk encapsulation dot1q
> > > switchport trunk allowed vlan 415,416
> > > switchport mode dynamic desirable
> > > switchport voice vlan 415
> > > spanning-tree portfast
> > >
> > >
> > > Simon
> > >
> > > -----Original Message-----
> > > From: cisco-voip-bounces at puck.nether.net
> > > [cisco-voip-bounces at puck.nether.net] On Behalf Of Anthony Mendoza
> > > Sent: Thursday, July 15, 2004 12:04 PM
> > > To: cisco-voip at puck.nether.net
> > > Subject: [cisco-voip] Need Help Configuring Cat2924XL
> > >
> > >
> > > I've got a Cat2924XL with the following relevant config snippets:
> > >
> > > rwc-2924xl-131#show vlan
> > > 12 DMZ active
> > > 100 IP Phones active Fa0/7
> > >
> > > interface FastEthernet0/5
> > > switchport voice vlan 100
> > > spanning-tree portfast
> > > !
> > > interface FastEthernet0/6
> > > switchport access vlan 2
> > > switchport voice vlan 100
> > > !
> > > interface FastEthernet0/7
> > > switchport access vlan 100
> > > spanning-tree portfast
> > >
> > > interface FastEthernet0/24
> > > switchport trunk encapsulation dot1q
> > > switchport mode trunk
> > >
> > > interface VLAN2
> > > ip address 172.16.0.131 255.255.0.0
> > > no ip directed-broadcast
> > > no ip route-cache
> > >
> > >
> > > So... FE0/7 works fine (as you would expect), but neither 0/5
> or 0/6
> > > work
> > > ... The phone sees the operational VLAN 100, but never gets
> an IP..
> > > What
> > > the heck am I doing wrong? Cisco's docs only show the "switchport
> > > voicevlan" option as being relevant. Is there something I'm
> > > missing on the
> > > switch config? I've rebooted the phones and switch a few times.
> > >
> > > Thanks for any help,
> > > --
> > > Anthony Mendoza
> > >
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