[cisco-voip] T1 dropoffs.
Wes Sisk
wsisk at cisco.com
Tue Jul 20 08:30:25 EDT 2004
Peter,
If you telnet into the router, then you must do "term mon" before
performing the debugs.
/Wes
peter.casanave at us.army.mil wrote:
>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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