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Try calling 877-CAL-Repair. They claim to repair all kinds of testing and tracing equipment.

Thanks for the reply good to know.

I can't speak to the NEC equipment, but if the system does indeed have a PRI card then yes - you should be able to link it to the Asterisk/Digium T1 with a crossover cable and the correct PRI as CO settings in the Digium config.

Greetings all long time reader of this forum great info on here, I have a old NEC Electra Elite IPK I am dusting off and setting up for a silly Rube Goldberg setup of old phones and old phone technology including a T1 PRI from a Asterisk server.
It has 10 card slots, A CPU, 'AP' and slots 1-8.
The slots have the following cards
CPU CPUII(100)-U10
AP MIFM()-U10 ETU
S1 SLIB(4)-U10 ETU
S2 SLIB(4)-U10 ETU
S3 ESIB(8)-U10 ETU
S4 PRT(1)-U20 ETU
S5 COIB(8)-U30 ETU
S6 - empty
S7 -empty
S8 PVA(X)-U10 ETU


Slots 1 & 2 provide Foreign Exchange Subscriber (FXS) to a collection of plain old phones, (500 sets 2500 sets etc) and is ahead of a old 1A2 system and a Merlin system.
Slot 3 has a card for a NEC office phone there is one DTH-320-1.

Slot 4 has what I understand to be T1 card "Primary Rate Interface Unit provides for the termination of an ISDN PRI line for voice service only." It has the echo cancel option. it is my understanding that this can connect to a Digium T1 card in a Linux server running Asterisk where the Asterisk server is mimicking the central office. ?

Slot 5 has a Foreign Exchange Office (FXO) card and there would be 4 incoming lines on this card.

Slot 8 PVA card Which I think was for exporting system extensions over SIP? and possibly is a FPGA that can do many functions. So this could export some extensions back to the Asterisk server over its Ethernet port?

My questions are can the Electra support both the COIB and PRT cards ? I'd like to reserve 4 analog incoming lines off the COIB and use the T1 for rest of the Trunks the unit supports which I think is 16 total (16 - 4 = 12 Trunks from the T1 )

Does the MIFM card do anything with the CPU 2 card? I read in the manual its not used with the CPU 2 card (I have a spare CPU 1 card with this unit)

I powered it up and temped on some 2500 sets to test the unit and it works in its default settings, but i'll need to program it for the COIB and PRI card, what is the best way to program it seems to be many ways:
* There is a web interface off the CPU 2 card Ethernet port, however it seems no all the programming can be done on it.
* The NEC office phone
* or one of the three serial ports on the front of the unit, but I read they require specialized software.
* There is also a DE-9 connector on the PRI card and both SLIB I am unsure what they are for possibly programming just those cards?

Also suggestions are welcome.
Thanks for your feedback

I have a few probes that do not work. No broken solder joints. Progressive 200Ep and Progressive BA200. The tone generators work ok.
I hate to throw stuff away. I would like to get them fixed. Any suggestions.

Showing as unregistered shows they are hitting the system. As c5z said you need to register them to the system and have a DSP card installed. You will also need licenses as the tde didn’t get the firmware update to open all the licenses. The license server id shut down here, not sure if any of the servers are still working anymore or you can buy a license

In 1.1 Slot, click on the IP Phone Registration button to add extensions to the system. Also need a VOIP/DSP card installed on the MPR card.

Long story short, I cannot get the phones to register to the system.

In the system slot 5 is where the IP phone start. Ip phones have not been set on this system before. My understanding assuming the network is set up to allow the phones to "see" the system then all you do in 4.1.1 is assign extension numbers there. Anything else in programming that needs to be done for them to work?


Phones have the server IP address and are currently set to DHCP. The message on the display is Unregistered to server.

I have seen something about port 9300 needs to be set up in the NAT rules for the phones to communicate??

Things are simple until they aren't

I found my manual for Prophet H. It says 10VAC. That is all I found.

No, but it's pretty straight forward.

Back up the CP10 database then import it on the CP20 software.

Adjust the inmail ports to reflect the new numbering plan/dept group standard.

Make sure you have the CP20 already updated, initialized and the license uploaded.

Upload the database.

Use the util to copy all the VM stuff from the CP10 to the CP20.SDcard. You will need to have the card reader for this on your pc. This can take a while depending on how much is there.

Reinsert SDcard, start the system. You MIGHT have to reboot once but it should be fine.

Test