VOIP - Zaptel - Phonejack Lite

RouterOS General
1

I have been trying very hard to get a simple VOIP link working correctly, but it has turned into a nightmare.

Here is my setup

VOIP Server 700mhz amd (Zaptel x100p, hooked into a pots line)
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Ethernet
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VOIP client (400mhz intel) Phonejack lite ISA card


All I want to do is be able to use my regular pots line at a remote location through a ethernet connection.

When I pick up the phone connected to the phonejack lite card, and dial a number, I will hear it dial the digits on the remote end, but I never hear the last few digits on the remote end and then the whole link goes dead, no audio will pass through. It does dial the number completely on the zaptel end, because the phone rings that I dialed.

I have tried different codecs with no luck.

A 3 digit phone number is no problem, for example 211.

But if I try calling a 7 digit number or 10 digit, it always looses the audio path before the last for 2nd to last digit is dialed.

When I can finally get a phone call to go through, I have problems with echo. I have tried ever imaginable setting and can’t get rid of it.

Has anyone ever got something like this to work.

Any help would be appreciated.
Thanks!

Here is my dialogue with Mikrotik support (why would I want to plug into a PBX?? I though that was the whole idea of the X100P, to eliminate the need for a PBX)

Hello,

Echo depends on PSTN connection to Zaptel card. If that PSTN line is
connected to local pbx (telephone central), then echo path is very short
and sound is not distorted => it is easy for echo canceller to handle
this. But, if PSTN is connected to public PSTN network, then echo path
may vary a lot. Either latency in PSTN line is too long or quality of
the echo is too bad.
If it is possible, try to connect Zaptel card to some other PSTN line
(preferably - local pbx). And may be try to call some other telephone
numbers (preferably - local telephone number on local pbx) - echo path
may greatly vary depending on that as well.

Regards,
Edgars

On Thursday 01 July 2004 02:53, Jason Armentrout wrote:

Hi, I got a replacement zaptel card, and have gotten it to work now, but
I am now having problems with echo on the remote of the voip link.

I have the server setup with a Zaptel X100p fxo card PSTN.

The remote end has a Quicknet Phonejack lite isa card.

When I make a call on the remote end plugged into the phonejack card I
have echo. I hear every single word come back to me about a second
behind. The user on the PSTN end doesn’t have any echo.

I have tried the all of the aec settings on both cards and can’t not
solve the problem. I have tried many Combinations.

Can you please provide me with some help?

Attached are the sys support output files from both machines.

Any help would be appreciated.

Jason
__

Friday, June 18, 2004, 5:08:39 AM, you wrote:

Hello,

please make a supoutput file when this card is inserted in the router.
See how to make one:
http://www.mikrotik.com/docs/ros/2.8/system/support.main

Regards,
Edgars

On Thursday 17 June 2004 18:33, Jason Armentrout wrote:

I am runing version 2.8 the latest version
I don’t see it under driver print ,
the only thing I see is under resources, I see the device he card,
Tiger jet network intel 537
and it has its own irq.

I have tried all the pci slots, and tried 3 different computers

I have nothing under zaptel print either

Is this card not going to work?, if not I need to know where I can buy
one that will work

__

Thursday, June 17, 2004, 4:13:17 AM, you wrote:

Hello,

sorry for the delay.

what is the RouterOS version you’re currently running?
Take a look under ‘/driver print’. Do you see this card there? If no,
then try to plug it into another PCI slot.
The card shoudl appear in this submenu:
[admin@AP] ip telephony voice-port zaptel>print

For more information on IP Telephony under RouterOS see the manual:
http://www.mikrotik.com/docs/ros/2.8/ip/telephony.main

Regards,
Edgars Klavinskis

On Thursday 17 June 2004 03:48, Jason Armentrout wrote:

Hi, I still haven’t received a reply to this email I sent 3 days ago,

I need to be able to get this card working soon, or send it back to
who I bought it from.

Here is the email I received from my supplier. Can you please help me
out some?

Jason,
I’m sorry, but we’re not familiar with the Mikrotik software you are
using and therefor can’t attest to our cards suitability for use with
it. The card you got from us is equivalent to the X101P not the old
X100P. The X100P, as far as I know, isn’t made anymore. I know that
X101P’s we have from Digium and our oem versions of the card are both
detected by the computer bios as Tiger Jet devices. The card I
shipped to you was from our latest shipment of X101P’s and just to be
sure there was nothing wrong with this batch of cards I just finished
replacing the X101P’s in our phone system at our office with cards
from this latest batch and all is well with them. I can make and
receive calls just fine. Asterisk reports the card as Wildcard X101P
just as I would expect. Let me know what their tech support says…
If you think there is a problem with the card itself, we can exchange
the card for another one.

2

As far as I know, Zaptel Wildcard X100P IP telephony card is connecting only to an analog telephone line (it has only FXO port)

3

you are right, it is only for connecting to a analog telephone line, which is what I am trying to do

4

Then You have answered yourself on the

why would I want to plug into a PBX?? I though that was the whole idea of the X100P, to eliminate the need for a PBX

question, as there is no electrical or functional difference between the PBX and PSTN - only different scale… And to eliminate the need for a PBX, you would need FXS ports.

Regarding the actual problem, one cannot say anything before you present the actual config of zaptel card, phonejack card and voip tunnel in the middle. And also I would suggest you to play with regional settings first.