[abbaspaliwala]

Does anyone know of any VoIP provider that uses a SIP port other than 5060? The reason I want to use port other than 5060 is that in my country, port 5060 is blocked by the telco. I had been using FWD because one of it's SIP proxy server operates on port 5082. This port works for me but FWD proxy is very unreliable. It goes down for days at a time. Therefore I want to use another VoIP company. It would be great if someone could tell me if there is a VoIP provider that uses a SIP port like 5082 or anything other than 5060.

Thanks a lot.

[hwittenb]

VBuzzer uses port 80. I also believe VoiceStick has an option to use port 80, however you may need to talk to their customer service about it to get the details.

If your isp truly blocks port 5060 then don't forget to change the port that your ATA or softphone is using from 5060 to something else. That's the port number address that your VoIP provider uses to send sip signalling packets addressed to you.

The non-standard people like Skype and Yahoo Voice don't use port 5060.

[abbaspaliwala]

Thanks a lot for the tip. Vbuzzer seems like what I was looking for. But I am having difficulty getting registered using SPA3102 ATA. I have followed instructions on their web site but my ATA keeps failing the registration. Have you configured any ATA or SIP phone with vbuzzer? Specifically do you know how I should enable STUN settings?

Thanks a lot.

[hwittenb]

Originally Posted by abbaspaliwala

Have you configured any ATA or SIP phone with vbuzzer? Specifically do you know how I should enable STUN settings?

I believe the VBuzzer proxy would be proxy: vbuzzer.com:80
UserID: Your_VBuzzer_ID
Password: Your_VBuzzer_Password

For a STUN server I would set the following:

On Line 1 tab:
NAT Mapping Enable: YES
NAT Keep Alive Enable: YES

On Sip tab:

Substitute VIA Addr:YES
Send Resp To Src Port:YES
STUN Enable:YES
STUN Server:stun.softjoys.com (or any other stun server that is close to you and can respond quickly)

A STUN server is a standardized function so you can use any STUN server. I would select one that can respond very quickly so that you get the response before the adapter sends the Register request or the Sip Invite.

Edit: If you get no response at all to your register requests perhaps your isp isn't just blocking ports but blocking all sip packets.

[abbaspaliwala]

I initially thought that my ISP was blocking all SIP packets because when I used X-Lite softphone, I got error 408 registration failed. But this theory failed to hold weight because both X-Lite and SPA3102 work with FWD on port 5082. Furthermore vbuzzer windows client application works fine. Any other ideas why SPA3102 is failing the registration. I have tried STUN options, proxy, without proxy, etc. but to no avail. Will it help if I use SIP TLS? Is it compatible with vbuzzer?

[hwittenb]

To narrow down the problem, I would try to figure out if you are just not receiving a response from VBuzzer or if they are sending you some error message. You can do this with a sip debug trace. Search this forum for how to do a trace if you are unsure of how to do it. Traces are sometimes difficult to read but you should be see able to responses coming back from VBuzzer to your Register requests.

A DNS error would cause the problem but that would also cause FWD to fail no matter what port you were using.

Originally Posted by abbaspaliwala

Will it help if I use SIP TLS? Is it compatible with vbuzzer?

No, I don't believe so.