danno

We have a number of 8700 sites with multiple Med Pros installed but no IP trunks or IP stations. What are they used for then?? We get a load of problems with them and they're constantly being replaced so I guess they must do something.

Currently get a few problems with call distortion which is usually blamed on the Med pro's - any idea's ?

By the way the switches are all stand alone and not networked

Any ideas

kgal268

You state that you have multiple S8700 sites. Are these sites Multi-connect or IP connect?

PBXtech.info

 

danno

We have multiple sites but they're not networked.

Are the Med pro's used to communicate between PPNs and EPNs at the same location?

kgal268

Sorry, maybe I did not state that correctly. What type of cabinets are installed?

The S8700 can be configured two different ways.

Multiconnect - typically using MCC cabinets, that are connect to the server via IPSI's on a "private" network, using Avaya Cajun switches. And with multipe cabinets you would still be using EI boards and fibers for port network connectivity.

IP connect - Uses G650 cabinets, that connect back to the server via IPSI's but this connect could traverse the customers network. Connectivity between port networks would be through Medpro boards.

danno

Sorry, yes they are IP connect.

Blah

Hi, MEDPROs are purchased only for AUDIO sides of IP conversations.. CLANs are purchased for the CONTROL of the calls over IP.. or hosts of other apps, such as CDR, etc, etc, etc. .

You likely bought the MEDPROs and CLANS with the intended purpose of IP trunking.. To assign an address to a MEDPRO is easy: change node-name [board].. then assign the address.

MEDPROs pop a minor if they are inserted without an IP address, or used to.. we've never inserted a MEDPRO without an address thereafter. If you are not going to use a MEDPRO, then remove it, or leave it unseated.

For VOIP you need a CLAN and MEDPRO in the same network-region.. it's quite simple.. each site, in my mind, gets its own network region.. without the CLANs, the calls fail.. without the MEDPROs IP calls cannnot be heard.

CLANS are used for other things too, like CDR, SAT access, IP Agent, Softphone, AUDIX links, CMS, etc, etc, etc.. 100s of uses. MEDPROS are expensive, but only exist for the audio.

PBXtech.info

 

Blah

I should have added (and am).. MEDPROS have nothing whatsoever to do with cabinets or sites communicating for signaling.. they are strictly AUDIO cards for IP calling.

Blah

and one other quick one, I am sorry.. when 3.0 comes out for CM.. multi-connect switches can become IP connected so long as you change your IPSi cards to be corporately IP-addressed... just an fyi.. I personally do not at all care for the construction of G650s.. but at least they can be racked.. I wonder if Avaya will forever allow MCC cabinets.. I doubt it.. but I fully expect customers to push back regarding MCCs.. SCCs are one thing, for smaller sites.. but MCCs being replaced means potentially 72 hours of downtime.. if not more.

danno

Thankyou Blah,
next time they try and blame distortion on the MedPro's I'll chuck it back at them till they come up with a good excuse, failing that I'll get them all taken out

Cheers

Blah

you are welcomed.. Avaya tries to sell MEDPROs if they will be used in the future.. if you're not doing any VOIP, or gateways... there's ZERO chance of MEDPROs causing static.

pganoe

Correct me if I'm wrong. But if a IP connected S8700 has more then 1 EPN, a IPSI and MedPro are required in each. Otherwise there is no talk path between the EPNs. This is true even if you have no IP stations or trunks. You are still doing VoIP between the EPNs. If the MedPros are causing your problem or if it is something else in the network I couldn't say.

Again please tell me if I have a misconception

danno

This was my understanding, however I keep being told this is not the case, and there appears to be no documentation that supports the theory so thinking I've been misled somewhere.

Blah

oh yes, I just read this.. in an IP-connected setup, with G650s, MEDPROs are in fact necessary. I thought this all regarded multi-connect. My stupidity. even without VOIP, the MEDPROS provide the talk paths.. my solution, for us, to this, was to make the MEDPROs corporately addressed, and connect them to Cajuns which had corporate addressing themselves. I am so sorry I did not read "IP CONNECT"