02-28-2006 11:46 PM
Hi,
I want to set up a VOIP environment in my company. The topology is like this:
PBX1-75xx-WAN-2821-PBX2-phone
PBX2 is a panasonic TD88 Model.
The dial plan will be (from phone-set):
1.dial 8 for PSTN access direct to PBX2
2.dial 9 for accessing branch office under PBX1.
I want to know which module/card shall I choose on cisco 2821 router?
Thanks
Joey
03-01-2006 05:27 AM
Joey,
It depends on what kind of interface you have on PBX2. Analog? E1? T1?
Ivan
03-01-2006 09:54 PM
Hi Ivan,
I know little about telephony. But I think the interface is analog. Because it seems using RJ-11 interface on PBX.
Actually,TD 88 get 8-port for connectiing to telecom company. Now we just used 4 of them. I want to use the other 4 interface for voip that may be connected the Cisco 2821.
Do you have any recommendation?
Thanks
Joey
03-02-2006 01:53 AM
Hi!
Do you have those 4 that are connected to telco connected to standard telephone lines (can you instead of pbx connect analog phone and make a call)?
If yes,then you will need a FXO interface on a router.
Ivan
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