What equipment to choose for connecting E1 stream to Asterisk?

Question

Asterisk

We want to connect an office via E1 (don't ask why, don't offer SIP trunks).
There will be 12-15 incoming lines (in the long term, no more than 30).
Please tell me what equipment to choose for use with an Asterisk-based IP telephony server.

Answer 1

Good afternoon.
We have come to AddPac1800 and virtual master.
ps Please note that the provider will most likely have SIP to the equipment that will give you E1.

Answer 2

Alvis-GW-2E1
Or Eltex smg-2 and asterisk

Answer 3

if you are not afraid of used - cisco 2801 with two E1s in the region of 20,000 rubles from a naga.
Already bought more than ten pieces and had no problems.

Answer 4

The first and "frontal" answer is a Digium card, preferably a modern one, so that it survives the upcoming upgrade of the machine. TE131, or better TE131 for one stream, TE235 for two.
At the same time, before buying a card, it is important to get very important information out of your operator - the type of alarm and the echo cancellation mode.
And then it may turn out later that the operator has some kind of miracle done by domestic Krivorukov Kulibins or cheerful Asian brothers - and the fact that he waves a certificate at him is no longer easier for you - the money is gone.
If you want not to depend on the hardware of your computer, then you can purchase an E1 adapter with an Ethernet ending. Naturally, it will survive any Asterisk computer upgrade.
At the same time, it is important to know about the insidious nuance - ethernet can be in two modes there.
For example:
Digium G100, G200, a family of devices from the Russian company Kronix (there are very sane and competent people - you will not be left without prompting and advice).
I will not repeat the devices that were named earlier.
One more piece of advice, based on my many years of experience and opinion: if you come across equipment with the words Eltex (Eltex) Novosibirsk, TAU-something - immediately run very quickly from the one who is trying to foist it on you and don’t shake hands with him anymore. Never.

Answer 5

Sorry for the offtopic - are there any serious problems with Eltex? I ordered TAU-72IP and TAU-32M(24FXS/8FXO) for myself in 2016... You surprised me... I wanted to replace the dying PBX Minicom DX-500 with them, screwing them to the asterisk... I
ordered TAU-72IP for testing - I didn't notice any problems with live subscribers for three months...
Well, on the topic - I'm satisfied with the hardware of the Novosibirsk company Parabel. Quasar-M PCI board (1E1 without hardware echocall) and Elf-2 gateways (with and without echocall) are in operation. The price tag is not horse, it suits me.
Really works with Si-2000 (Iskratel) and DX-500 (Informtechnika, Moscow). QSIG.

Answer 6

Eltex stands at our provider. And if I didn't know that Asterisk and SIP are easy to set up, I probably wouldn't be able to set them up at all. In total, three weeks of parsing tcmdumps and adding all possible crutches, port remapping, and so on. was set up such a krivnyak, which is not written on decent sites.
There was also such a glitch, at first by accident, and then we managed to synthesize such a situation when, if the SIP signaling was broken, there was a connection to the RTP stream and it was possible to listen to random conversations in the provider's pool (guess through which equipment!).
Since then we have been working fine. But the provider still falls off 2 times a month.

Answer 7

Options:
* cisco - 2600XM - 5000r approximately costs, and is put into operation. Uptime for over a year.
* Eltex SMG
* Cronyx, Zelax, RAD and others with TDMoE support - connected as dahdi stems. Of these, I recommend kronik - the most adequate support.

Answer 8

If you need to connect only 1 x E1 stream from the PSTN, I can offer our development Alvis-GW-2E1-Lite, which is quite suitable for this task.
For Asteriskers, the price with delivery, setup and a 5-year warranty is 35tr today.
Get in touch :)