johnmcneely

I am setting up a VoIP exhibit in a telephone museum. My plan is to use ExpressTalk on two PCs connected together via Ethernet (hopefully a crossover cable between them will be enough). On one PC I had hoped to run both ExpressTalk and a Voip or TCP/IP Sniffer that I could open on a second monitor connected to that PC. That way when I make a SIP call dialing the IP address of the second PC also with ExpressTalk running, viewers of the exhibit would be able to see some representation of the packets moving between the two ExpressTalk clients. I think I remember that ExporessTalk supports a trace program but that is after-the-fact and not in realtime. Can you recommend a freely downloadable program that will display traffic across the TCP/IP connection between these two PCs and display that in a window I could display on the second monitor? Thank you.

Well, it's just a SIP client and virtual sound driver. As if your soundcard had a RJ-45 port  through which it would send SIP controlled audio data.

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Thank you for this reply. I have figured this out...partially anyway. First I had to find a VoIP provider that would actually acknowledge registration of the phone. Just because the phone says it is registered doesn't mean it is. The proof is to place a call to that phone. If it rings, it is registered. I signed up for two accounts at Callcentric.com. I registered one account with uplink and I registered the phone to the other account. In uplink I set the "number to dial when Skype calls" to the number the phone is registered to. It works. When a call comes in on Skype, uplink dials the phone number registered to the phone. What I haven't been able to do is to get the phone and uplink to successfully dial out on Skype. What a shame I can't get the phone to register with the Axon PBX as an extension. I know I could dial out on Skype if I could do that.

John

I am still trying to figure out the nature of uplink. Sometimes I think it is a specialized SIP server that SIP clients like Express Talk and others can register with and then make calls. The presence of the Axon PBX confuses me. I recently bought a ZyXel P2000W WiFI SIP phone, hoping that I could get it to register either with Uplink or with Axon virtual PBX. When I try to register it as an extension, the Axon does not announce in its log window that the registration has occured. I was hoping I could bypass the Axon altogether and just register the phone with Uplink. Anyone got any ideas?

Uplink instructions refer to its use with either Axon or ExpressTalk or both. I have purchased a SIP wireless phone. I've tried to configure it to register with Axon as an extension. It claims it is registered but Axon does not confirm that and I cannot seem to make calls. Could I bypass Axon and have it register with Uplink directly? I've tried and uplink shows incoming SIP call but it doesn't activate a call on the skyp client. I'm trying to use to to make calls to/from the Skype network. Any thoughts anybody?

John

I've gotten Skype, Uplink ans the Axon to work together. Now comes the next logical question:

How many incoming calls can be received (into Skype? into Axon through Skype?) when there occur multiple simultaneous calls to the Skype-In number?

Are multiple Skype accounts (and/or Skype-In numbers) needed? Does one define multiple external lines in Axon? Multiple Skype extensions with slightly different names?

John McNeely

I finally got it please disregard the last post. In case this helps the others I will let tell what fixed my problem.

 

I followed directions form crshman to a tee. What I did not do that corrected the problem is where he says:

 

"Uplink will now login to the skype account (on your axon server).

Read the SIP PRIVATE IP"

 

But in this section

 

Go back to the axon webinterface.

Add an external line

 

"Line name: Skype

Server: (type the SIP PRIVATE IP supplied by uplink here)

User ID: Skype (the user id should be the same as the user id that you use for uplink to login to axon)

Password (the password should be the same as the one you used for the uplink extension in axon) 1234 in this example"

 

In the Server: (type the SIP PRIVATE IP supplied by uplink here)

 

Make sure you put the port number also.

 

I put the IP address there but not the port and it did not work. When I put the port number after that it worked perfectly.

 

I spent hours on this I hope this helps. There may be a setting that the port number is different some where but I need to look but I finally got it. Hope this helps others

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I have tried to successfully transfer an incoming call directed to an extension registered by ExpressTalk to another extension off the same Axon. I've tried this on incoming lines from two different VoIP providers. Upon pressing the Transfer button the second time, after the transfer-to extension has been dialed, the call from the outside is disconnected. Can anyone shed light on this problem? Thanks.

John McNeely