Cisco 2800

[wannabe1]

We are having a problem implemeting the cisco 2800 for off premise extensions. The routers have DSO & DSX WIC cards installed in them. We are connecting 4 analog station ports off our PBX in hopes of getting full functionality of these analog stations at the far end. The cisco dealer has been able to get them to work the way we envisioned. At the far end we have cisco machine dial tone, not our PBX's. We cannot dial 9 to access a outside line. There is a long delay when making a intercom call either. Will these routers function the way we hoped and our rep does not know what they are doing, or are we trying to implement features the 2800 does not support.

 

[rtfmdude]

wannabe1,

nah, this is totally doable. let me make sure I have this right - can you describe exactly what the topology looks like?

something like this?

[2800]--some ip connection--[router]-[pbx]
||||
(handsets)

or, maybe like this?

[2800]--t1 or something--[pbx]
||||
(handsets)

let us know, and post the configs, if you can.

 

[wannabe1]

Let's back up and start at square one. I am in the telecom dept. We have a branch down the road with a point to point T1 in between for data. We also have 4 off premise extensions going there. The present transport method is the local phone company. The guy in the IT dept. purchased these Cisco router/csu's. He contracted the Cisco people to put them in. I handed the IT people 4 analog/single line stations off the PBX, expecting to get the same thing on the far end. The IT guy gets the V.35 connection and I get the analog version of the DTE ports. Unfortunatley, everything they do is top secret. I know they had the wrong type cards in the WIC slots. But because I can program a Paradyne or a Adtran and this is Cisco and I am not a CCNE, they are on a need to know basis.

I need to know if this product can do as they say number one (before I go get a Cisco router and a Adtran TSU). What card should be in the WIC slot on each end?

I am not going to program these units. I will either find another contractor or replace them.

What do you think?

 

[rtfmdude]

ok, lemme see if I have this straight this time:

main site
PBX==(analog)=={{PSTN transport}}==(v.35)-[2800]=4fxo

If the actual interface into the 2800 series router is v.35(which would mean he would have a wic-1t, which cannot handle a channelized t1), then I don't think he can do anything with this connection... but you say it works, but just works poorly.

This is what I would expect:

PBX==(analog)=={{PSTN transport}}-t1(cat5/rj48c)-[2800]=4fxo

The 2800 would have a vwic-1mft-t1(has a built in csu) to connect to the pstn. That card could handle 20 ds0s of data, and 4 for voice(or any combination thereof). The other wic needed would actually be a vic(voice interface card, looks just like a wic), a vic2-4fxo.

you could configure fxo-ls signaling on the t1, and do some kinda plar-opx connection from each analog fxo on the remote site just fine - each with a dedicated ds0, if you'd like. Is there anyway you can get a 'show diag' from the 2800? (or at least an accurate inventory of what's on the box?)

 

[wannabe1]

rtmfdude,

we are finally going to revisit uor Cisco OPX issue this afternoon. I will try and get more info. You have provided some insight. Thanx. i'll let you know