[Asterisk-Users] Welltech FXO: initial tests

[Jorge Mendoza]

Claudio,

Try the SIP version 103. It is rock solid, and have FSK CID. 
Unfortunately, I think, DTMF CID is used in Italy, which is not (yet?) 
supported.
Also, polarity detection is missing in this version, but Welltech 
promise to be included in the next release.

However, your problems seems to be a bad gw configuration.

Jorge



Claudio Loletti wrote:
> Hi,
> I'm using the Welltech pstn GW 3804 (four analogue ports) and in some 
> way I agree with Jorge's points.
> 
> I am also using two Welltech SIP Phone LAN 201
> I set them in proxy mode.
> 
> I am still left with some problems.
> 
> I can talk between the two SIP phones only with reinvite (I cannot talk 
> when * stays in the middle)
> 
> I can call the outside pstn line through the GW, but I cannot hear the 
> ringing tone (from the caller) and cannot speak.
> 
> When I call from pstn, the gateway answer after the specified number of 
> rings but it does not forward the call to the lan phone extension.
> 
> I set the GW in peer to peer mode.
> 
> I will attach the * config files and the welltech phone and gw 
> configuration if needed.
> 
> Any help is really appreciated.
> 
> Claudio
> 
>> Hi,
>>
>> After a long way of problems (shipping, customs, etc) finally I got 
>> Welltech working. Here below my comments.
>>
>> - The documentation is poor and have errors
>> - The web configuration is not complete. However is useful for the 
>> basic configuration parameters. The command line is necessary for 
>> modify all parameters.
>> - The software upgrade is easy. Initially the gw came with H323, we 
>> upgrade to SIP.
>> - We have tested only one port, it works well, audio quality is good 
>> (alaw).
>> - Outgoing and incoming calls are working ok.
>> - The Caller ID (from PSTN side) does not work
>> - Answer supervision (reversal polarity detection) seems to work fine. 
>> This feature is very important to us, is the first time that we found 
>> this feature in a analog CO trunk. In a test application where we play 
>> a voice message to the called user, the message start to play just 
>> after answer. Tested with wire phone and cell phones.
>> - Disconnect tone seems reliable (although the default configuration 
>> was not adjusted).
>>
>> We have done dozen of test in order to get the gw working. During the 
>> tests two issues came up, they need further analysis and tests:
>> - Two times a UDP packages loop between the gw and * saturated the 
>> bandwidth after a hung up. Rebooting the gw does not stop the loop. 
>> Even with the gw turn off, * was sending the packages.Only rebooting * 
>> turn the system normal.
>> - The gw port stay locked after a hung up. Apparently due to a no 
>> detection of the disconnect tone (in this case the tests were carried 
>> out with a PABX without disconnect tone). But the * user (SIP) was 
>> hung up and it seems that there are not a release timer.
>>
>> We will continue the tests and test the Welltech technical support as 
>> well (no required until now).
>>
>> Jorge
> 
> 
>