Why I cannot use non-standard port in SIP URI?
 

Why I cannot use non-standard port in SIP URI? I have sip port 5070 on my asterisk, so my SIP URI is user@my.server.com:5070.

Where are you trying to use that SIP URI format...

I suspect it would work if setting up and alias...but it will not work without admin interference if you were trying to add my-server.com:5070 to the providerl list ...

I tried to change my userid here SIPBroker - Login and I received javascript message from my Opera browser "Userid is an invalid SIP uri"

When I tried to change my userid (it is my SIP URI also) I received javascript error message:

<sipbroker.com>
Userid is an invalid SIP uri.

I got the same error.

I believe this is because you're usually expected to setup an SRV record for your domain. The one for my domain looks like this

_sip._udp.simcop2387.info SRV 1 0 5060 simcop2387.info

you can set a nonstandard port there, and then all the asterisk servers and everything else that is setup to lookup SRV records for unknown domains will pick up the nonstandard port without being configured and get you much better compatability, if you can't set the SRV record then i'd suggest changing providers for your nameserver (there is a free one out there FreeDNS - Free DNS - Dynamic DNS - Static DNS subdomain and domain hosting that lets you do it)

I confirm, that I am not able to register the SipBroker account with sip address non-standard port 5064.
Jacek