I'm trying to find a way to call "country-independent" free European numbers like 00 800 22 88 3503. This sample number is reachable from many EU countries as well as from UK.

This sample number is listed in ENUM - both e164.org and e164.info are responding with sip:80022883503@public.sip.magrathea.net

Dialing *01380022883503@sipbroker.com gives me mainly errors, while I've been able to connect once.

Question - is there a way to connect to such numbers reliable?

i tried using the ata and works fine

Thanks, it seems something was changed since my last attempt. Works for me as well.

Using linksyspap2t dial string

L:20,S:7,(x|*xx|911S0|1[2-9]xx[2-9]xxxxxxS0<:@sipbroker.com>|[x*][x*].<:@sipbroker.com>|<#:>[x*][x*].)

Dialing toll free numbers does nothing? Am I the only one?

Are you dialing *1800nnnnnnn, *1888nnnnnnn, etc.?

Can we do it without the * nonsense? Check sipbroker.com for all calls UNLESS i prepend with *

It works fine. Maybe the toll-free termination provider was having some technical difficulty at the time of your attempted call. Some toll-free numbers check the CID number before answering, as they wish to pay for incoming calls only from certain areas.

When you use SipBroker for toll-free termination you get kind of a roulette choice of termination providers, not all of which can reach all toll free numbers. Rather than using SipBroker for toll-free calls, I prefer to choose the providers with the lowest ping time from my IP address to their RTP connection address. Below are a few providers along with their RTP address (as of last time I checked). Some of these providers accept toll-free numbers with or without the 1 (country code).

Thanks!
By the looks of it one has to dial a # and then number for the service selected.

Ideally I would like to have 1) auto sipbroker check for all numeric calls, 2) then send to default provider prepended with a 9 for call numeric calls, 3) pass *XXX untouched for asterisk voicemail, 4) force all toll free calls through one of the below providers below.

I have items 2 & 3 covered by the current dial string
(*xxx|<:9>xx.|[3469]11|0|00|[2-9]xxxxxx|1xxx[2-9]xxxxxxS0|xxxxxxxxxxxx.)


thanks

Yes, that is correct. In my opinion two toll-free providers are enough for the average user. When configuring a phone for an average user, I usually configure the two best toll-free providers, one without the 1, the other with the 1. This portion of the dial plan should come before the portion that handles paid calls, and looks something like this.

800[2-9]xxxxxxS0<:@voiper.ipkall.com:5060>|
866[2-9]xxxxxxS0<:@voiper.ipkall.com:5060>|
877[2-9]xxxxxxS0<:@voiper.ipkall.com:5060>|
888[2-9]xxxxxxS0<:@voiper.ipkall.com:5060>|
1800[2-9]xxxxxxS0<:@proxy.ideasip.com:5060>|
1866[2-9]xxxxxxS0<:@proxy.ideasip.com:5060>|
1877[2-9]xxxxxxS0<:@proxy.ideasip.com:5060>|
1888[2-9]xxxxxxS0<:@proxy.ideasip.com:5060>|

Note that ":5060" is needed after each host name if the ATA is configured with "Use DNS SRV:" and "DNS SRV Auto Prefix:" both set "yes". This is not necessary for sipbroker.com because there exists a DNS entry that will get you to sipbroker.com no matter if the ATA does a DNS SRV lookup on _sip._udp.sipbroker.com.

As far as I know further dial plan processing cannot be done in the ATA after SipBroker has failed to find a route for that number. When SipBroker fails to find a route it returns "300 Redirect" and instructs the ATA to try calling the number at the default proxy. If this default proxy is someplace that offers dial plan processing, such as Voxalot, then of course further dial plan processing can occur there.