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Home > Archive > Voice over IP Cisco > July 2006 > Media ports on cisco 7960
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| Author |
Media ports on cisco 7960
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| Hi,
Default media port range on cisco 7960 is 16384 to 32767.
I want to change it to 16384 to 16482.
Where to make changes so that phone only uses that range for media?
Thanks.
/A
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| Jonathan Charles 2006-07-03, 1:11 pm |
| The phone is using RTP, which has a specified UDP port range of 16384
to 32767....
I do not believe this can be changed (it is a function of the
underlying protocol).
But more importantly, I think changing it to such a small range of
ports (98) would have serious negative consequences.
Jonathan
On 7/3/06, AKN <ajt.info@gmail.com> wrote:
> Hi,
>
> Default media port range on cisco 7960 is 16384 to 32767.
> I want to change it to 16384 to 16482.
>
> Where to make changes so that phone only uses that range for media?
>
> Thanks.
>
> /A
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
| |
|
| Jonathan Charles wrote:
> The phone is using RTP, which has a specified UDP port range of 16384
> to 32767....
All IP phones use RTP for media and there is not restriction in the RTP
standard to use only 16384 to 32767 range for media traffic. It is only
recommendation from cisco to use 16384 to 32767 range for media traffic.
>
> I do not believe this can be changed (it is a function of the
> underlying protocol).
As I explained above it is not the function of underlying protocol, and
should be able to be changed somewhere.
>
> But more importantly, I think changing it to such a small range of
> ports (98) would have serious negative consequences.
Normally 1 to 2 ports are needed for one voice channel that is one phone
call and Cisco-7960 can handle at most 12 calls at a time that means
maximum 12 to 24 ports are used so this range of 98 ports are more than
enough.
>
>
>
> Jonathan
>
>
> On 7/3/06, AKN <ajt.info@gmail.com> wrote:
>
| |
| Voll, Scott 2006-07-03, 7:11 pm |
| Ip video conferencing unit let you change rtp ports so I would have too agree. So the real question is will cisco let you change it?
--------------------------
Sent from my blackberry Wireless Handheld
-----Original Message-----
From: cisco-voip-bounces@puck.nether.net <cisco-voip-bounces@puck.nether.net>
To: cisco-voip@puck.nether.net <cisco-voip@puck.nether.net>
Sent: Mon Jul 03 15:07:16 2006
Subject: Re: [cisco-voip] Media ports on cisco 7960
Jonathan Charles wrote:
> The phone is using RTP, which has a specified UDP port range of 16384
> to 32767....
All IP phones use RTP for media and there is not restriction in the RTP
standard to use only 16384 to 32767 range for media traffic. It is only
recommendation from cisco to use 16384 to 32767 range for media traffic.
>
> I do not believe this can be changed (it is a function of the
> underlying protocol).
As I explained above it is not the function of underlying protocol, and
should be able to be changed somewhere.
>
> But more importantly, I think changing it to such a small range of
> ports (98) would have serious negative consequences.
Normally 1 to 2 ports are needed for one voice channel that is one phone
call and Cisco-7960 can handle at most 12 calls at a time that means
maximum 12 to 24 ports are used so this range of 98 ports are more than
enough.
>
>
>
> Jonathan
>
>
> On 7/3/06, AKN <ajt.info@gmail.com> wrote:
>
________________________________________
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cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
| |
|
| I am always able to change these ports when I am using SIP firmware, but
when it is used with CCM, I dont know where to change it.
/a
Voll, Scott wrote:[vbcol=seagreen]
> Ip video conferencing unit let you change rtp ports so I would have too agree. So the real question is will cisco let you change it?
>
>
> --------------------------
> Sent from my blackberry Wireless Handheld
>
>
> -----Original Message-----
> From: cisco-voip-bounces@puck.nether.net <cisco-voip-bounces@puck.nether.net>
> To: cisco-voip@puck.nether.net <cisco-voip@puck.nether.net>
> Sent: Mon Jul 03 15:07:16 2006
> Subject: Re: [cisco-voip] Media ports on cisco 7960
>
> Jonathan Charles wrote:
>
> All IP phones use RTP for media and there is not restriction in the RTP
> standard to use only 16384 to 32767 range for media traffic. It is only
> recommendation from cisco to use 16384 to 32767 range for media traffic.
>
>
> As I explained above it is not the function of underlying protocol, and
> should be able to be changed somewhere.
>
>
> Normally 1 to 2 ports are needed for one voice channel that is one phone
> call and Cisco-7960 can handle at most 12 calls at a time that means
> maximum 12 to 24 ports are used so this range of 98 ports are more than
> enough.
>
>
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