Should i upgrade TDA200 to IPCMPR for voip?

[vaah]

Hi,
I would like to get voip feature so I can build pbx to pbx network intented for call center function. This way I can reroute call to site B to site A, if the operator in the site B is busy or the call goes unanswered. This way, the incoming call can be pick up by the employee in site A.

Site B will be installed KX TDE200 since the current pbx is very old one, and right now site A has TDA200. I was told I have to upgrade my MPR to IP convergence MPR so I can achieve this goal. Does this sound right? I thought TDA200 itself support voip? Please advise. Thanks.

 

[obtsystems]

Yes you can install a gateway card into the tda200

 

[vaah]

Thanks for your answer.
I wanna confirm, Can TDA200 and TDE200 connected with each other for VoIP without upgrading the MPR card of TDA200 to IPCMPR? If so, I must be careful. Seems like I'm close to being ripped off.

 

[vaah]

Do I need 16‐Channel VoIP DSP Card (DSP16)KX‐TDE0110 for my TDA200's VoIP capability?

 

[obtsystems]

you don't need to, they will talk to each other. you need the Panasonic KX-TDA0490 16-Channel IP Gateway Card or Panasonic KX-TDA0484 4 Channel IP Gateway Card depends on how many speach paths required.

on the tde you will need the dsp 16, which comes with 4 licences for gateway trunks

 

[cwc3]

if the systems are in the same town or city you could overflow bna on the pstn....

http://www.thetelephonemanonline.com

 

[vaah]

Ok so I would need IP gateway card for both PBX, also I only need the dsp 16 just for the TDE system not TDA, right?

Do i need to set up vpn for this goal? What is the typical bandwidth needed for 4 IP channel working simultaneously?
Thanks in advance.

@cwc3: whats BNA?

 

[cwc3]

bna "busy no answer" if you want overflow
untill you get ip stuff set up properly to go back out on a pots or isdn line to site b set overflow dest for incoming icd group for site A to lead number of site B....

How much bandwidth do you have at location
a and b who is the provider? mpls is the best solution !!

http://www.thetelephonemanonline.com

 

[vaah]

I'm planning to set up 1mbps dedicated point to point line, this would be used as DB transaction as well, thats why i wanna know whats the typical bandwidth usage for 4 channel simultaneously. There will be 3 sites site A is the head office and the rest the branch.

 

[obtsystems]

the dsp card in the tde will give you IP, extension, sip trunks/gateway trunks.
the tda needs the ip gateway card

Bandwidth per channel is as below. Using G729a will use 2 channels on the gateway and dsp16 so if using 4 at that rate it will use 8 channels( so dsp 4 and 4 channel gateway card will not cover 4 voice paths)


Codec Packet Sending Interval
20 ms 30 ms 40 ms 60 ms
G.722*1/G.711 87.2 kbps 79.5 kbps — —
G.729A 31.2 kbps 23.5 kbps 19.6 kbps 15.7 kbps