Dial tone + WAN requests

[The 10th Doctor]

Hi All,

I'm just trialing 3CX at the moment - liking it so far!

I have two questions, if someone could help?
1) If I have a VoIP "Generic SIP Trunk", is it possible to get 3CX to emulate a dialtone when I try to dial out? I guess not, but I figured I'd ask

2) I've port forwarded the correct ports, and I'm trying to connect externally (i.e via Public Internet). The phone won't register, and the server shows the following:
SIP request (REGISTER) from XXX was rejected. Reason: Block WAN requests is ON.
Message:
REGISTER sip:XXXX SIP/2.0
Via: SIP/2.0/UDP XXXX:5060;branch=z9hG4bK466831111

Is there some setting I've missed, I can't seem to find anything?

Thanks for any help

 

[leejor]

1) If I have a VoIP "Generic SIP Trunk", is it possible to get 3CX to emulate a dialtone when I try to dial out? I guess not, but I figured I'd ask

Your SIP device provides dialtone. You can simulate a second dialtone (such as one after dialing "9") using a dialplan within many ATA's and SIP phones.

2) I've port forwarded the correct ports, and I'm trying to connect externally (i.e via Public Internet). The phone won't register, and the server shows the following:
SIP request (REGISTER) from XXX was rejected. Reason: Block WAN requests is ON.
Message:
REGISTER sip:XXXX SIP/2.0
Via: SIP/2.0/UDP XXXX:5060;branch=z9hG4bK466831111

You mean 3CX won't register with a VoIP provider, or, a Phone won't register with 3CX? If you are Xing out an IP, you only need to do part of it. I don't know if it is a public IP or an internal IP.

 

[The 10th Doctor]

Your SIP device provides dialtone. You can simulate a second dialtone (such as one after dialing "9") using a dialplan within many ATA's and SIP phones.

Thank you, I'll see if I can find one for my SIP Phone. I don't suppose there's a generator for them? I did a quick search but only found some for Asterisk... maybe I can modify them

You mean 3CX won't register with a VoIP provider, or, a Phone won't register with 3CX? If you are Xing out an IP, you only need to do part of it. I don't know if it is a public IP or an internal IP.

An external phone won't register with 3CX, the 3CX server just shows that in the log and the phone shows 'registration failed'

Thanks for the help

 

[leejor]

Thank you, I'll see if I can find one for my SIP Phone. I don't suppose there's a generator for them? I did a quick search but only found some for Asterisk... maybe I can modify them

I'm still not clear on what you are trying to accomplish. When calling out on a VoIP trunk, there will not be dialtone as you are not sending DTMF out on the trunk. You, or the PBX, send a SIP message. A gateway (to a PSTN) trunk could be set up for two stage dialling, so that after an access code, you would cut through to the dialtone from your POTS line. I'm not sure if that is the sort of thing you are thinking about.

An external phone won't register with 3CX, the 3CX server just shows that in the log and the phone shows 'registration failed'

This can be caused by a number of things. Can you include another log showing the registration attempt and just X out a few digits in the middle of the IP's. What sort of phone is it? Is it located behind a router? Is it set to use STUN? Does the firewall test pass at the 3CX end, in other words, have you forwarded all of the necessary ports? Does the 3CX end have a fixed Public IP or do you use a dynamic DNS service? What make/model router are you using at the 3CX end? Is there any other firewall in use?

 

[The 10th Doctor]

I'm still not clear on what you are trying to accomplish. When calling out on a VoIP trunk, there will not be dialtone as you are not sending DTMF out on the trunk.

I want to emulate a dialtone when a user presses 0 to get an external line, despite me using a VoIP trunk.

This can be caused by a number of things. Can you include another log showing the registration attempt and just X out a few digits in the middle of the IP's. What sort of phone is it? Is it located behind a router? Is it set to use STUN? Does the firewall test pass at the 3CX end, in other words, have you forwarded all of the necessary ports? Does the 3CX end have a fixed Public IP or do you use a dynamic DNS service? What make/model router are you using at the 3CX end? Is there any other firewall in use?

SIP request (REGISTER) from 120.XXX.XXX.16 was rejected. Reason: Block WAN requests is ON. 
Message:
REGISTER sip:sip.domain.name:5060 SIP/2.0
Via: SIP/2.0/UDP 120.XXX.XXX.16:5060;rport=5060;branch=z9hG4bKPjRmgFc3JJTsDwpMn0-Ld493qU-7YoB89R
Max-Forwards: 70
Contact: "Me"<sip:[email protected]:5060>
To: "Me"<sip:[email protected]>
From: "Me"<sip:[email protected]>;tag=Yoyv86BXZpNaL2vahf5LxhkKDVIDu2J5
Call-ID: fZStWXT89SM1FxcOYexWtYkz6p4Sjsfs
CSeq: 38172 REGISTER
Expires: 120
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
Proxy-Authorization: Digest username="20",realm="3CXPhoneSystem",nonce="414d535c03bc4bdc33:9d28e54ba7bf8567480e28d61d139f76",uri="sip:sip.domain.name:5060",response="9409420b9015401bc3bbc293cb920ecb",algorithm=MD5
User-Agent: 3CXPhone for iPhone 1.0.23
Content-Length: 0

Phone: 3CXPhone for iPhone but I've also tried a Yealink T28
Behind router: Yes, it's a 3G connection but also tried a broadband connection
STUN: Yes
Firewall test pass: Yes
Fixed public IP: Yes (I have an A name of sip.domain.name pointed to it)
Router at 3CX end: Asus N16 (ports 5000-6000 TCP and UDP forwarded to the 3CX server)
Other firewalls: No

Thanks

 

[leejor]

I want to emulate a dialtone when a user presses 0 to get an external line, despite me using a VoIP trunk.

Not going to happen on the softphone. You can simulate it using the internal dialplan on a Linksys ATA or SIP phone, or others.

Router at 3CX end: Asus N16 (ports 5000-6000 TCP and UDP forwarded to the 3CX server)

There are additional ports that require forwarding, Have a look at this post..http://www.3cx.com/forums/the-portforwarding-faq-hope-this-gets-a-sticky-1697.html

SIP request (REGISTER) from 120.XXX.XXX.16 was rejected. Reason: Block WAN requests is ON.

What version of 3CX are you using? The latest (Ver. 10) is supposed to have an option to block outside registration on a per extension basis.

 

[The 10th Doctor]

Not going to happen on the softphone. You can simulate it using the internal dialplan on a Linksys ATA or SIP phone, or others.

I'd be quite happy with that, I've got both a SPA504G and a SPA525G connected which I'd like to hear a dialtone on. I better start understanding dialplans, yes?

There are additional ports that require forwarding, Have a look at this post..http://www.3cx.com/forums/the-portforwarding-faq-hope-this-gets-a-sticky-1697.html

Thanks for that!

What version of 3CX are you using? The latest (Ver. 10) is supposed to have an option to block outside registration on a per extension basis.

I am indeed using v10, and I feel quite stupid. I found a "Disallow use of extension outside the LAN" tickbox for the extension. Could have sworn that wasn't there, but what do you know. It now works

 

[leejor]

I'd be quite happy with that, I've got both a SPA504G and a SPA525G connected which I'd like to hear a dialtone on. I better start understanding dialplans, yes?

There are a number of sites with explanations of crafting a Linksys dialplan, this is just one of them. http://www6.nohold.net/Cisco2/ukp.aspx?pid=80&login=1&app=search&vw=1&articleid=5179

You probably want to use something similar to the "9," example they show for outside calls. Don't forget, your dialplan has to include all of the internal (3CX) numbers as well.

 

[ezhou]

I'm getting same error trying setup a phone. What was the fix?
Error messages >>>>>>SIP request (REGISTER) from XXX was rejected. Reason: Block WAN requests is ON.

I checked all the ports are correct...

Please help...