[cisco-voip] voip rural setup

[Wes Sisk]

Jared,

Not sure what protocol you're using to control the phones at the CPE.
If you're using callmanager+sccp(skinny) you can use the "locations"
feature to do your call admission control (CAC).

If you're running h323, you can use a gatekeeper.
For SIP, sorry no idea, just starting down that path.

/Wes

Jared Mauch wrote:
> On Wed, Sep 17, 2003 at 06:54:05PM +0300, Karthikeyan Arumugam wrote:
> 
>>dear sir;
>>
>>Dear lists,
>>
>>this is my first posting in the list and i hope that i get some suggestion.
>>
>>I am planning to setup very low cost rural VOIP using VSAT and wiress loop ie with access point 
>>in point to multipoint mode with IP phones at the CPE.
>>
>>the problem iam facing is how do I limit just only 4 users or IP conversation/call at a time.
>>
>>let me explain clearly...i have bandwidth through VSAT  of about 34Kbps and so 4 users can have voice channels at 8 Kbps compression. for instance i have 15 users or subscribers with IP phones connected to wireless.if more users at a time request for IP call then voiceIP call would be degraded.now how do i control them.
>>could you pls kindly suggest me or help on this.
>>
>>IPphone > Accesspoint > Router > VSAT <
>>
>>can you suggest where i can make to limit only 4 users at a time.
>>i cant limit in the wireless loop as the AP allow all the IP call request
>>what kind of low end router or access product or VOIP products i can use to limit IP calls at anyone time
>>this setup is in remote rural areas. all these rural is connected to our NOC through VSAT
>>if a user picks IP phone he gets IVR from NOC through VSAT:
>>
>>i would be glad if you could help me in this project.
> 
> 
> 	What you probally want to do is do some congestion
> managment.  I'm not sure what sort of call manager/sip proxy/whatnot
> you are using in this situation, but what you want to do
> is track these users in a group of some sort and when the phone attempts
> to do a call setup either provide a busy tone back or a congestion/fast busy
> tone back to the user.  If you signal back to the VoIP endpoint a
> busy tone they will likely retry after a short period when
> there are less people using the link.
> 
> 	I'm not familiar with VSAT (is this a satellite link?  that's my
> guess by the name) so can't provide much assistance with ideas
> here.
> 
> 	- Jared
>