Ask them for a list of devices that they support. Once you have that we can probably help you figure out how to fool them into thinking that they are talking to one of those "supported" devices.
Well, the only "supported" devices are ADSL gateways. For anything else, they just give this set-up advice that looks pretty normal to me: SIP number: 020NNNNNNN Username: 020NNNNNNN Password: XXXXXXXX SIP proxy: sip.telefoniedienst.nl SIP service location: sip.telefoniedienst.nl SIP signaling port: UDP 5060 SIP register service location: tel.telefoniedienst.nl SIP register signaling port: UDP 5060 SIP domain: tel.telefoniedienst.nl URL type coding: SIP Registration interval: 6000 seconds Session expires: 1800 seconds Reserved RTP port range: UDP 16384-32767 Codecs: First negotiated G.729 secondly negotiated G.711 a-law type DTMF mode: PCM Sending INVITE Anonymous: Not permitted Echo Cancellation G.168: In use Voice Activation Detection: Not in use SIP SUBSCRIBES messages: Not permitted Early Media acknowledge: Not in Use This is what works on the ZyXEL P-2601HN0F1 gateway: SIP Account: 020NNNNNNN Username: 020NNNNNNN Password: XXXXXXXX Compression Type: G711ALaw, G.729, G.722 SIP Service Provider Name : telfort SIP Local Port : 5060 SIP Server Address : sip.telefoniedienst.nl SIP Server Port : 5060 REGISTER Server Address : sip.telefoniedienst.nl REGISTER Server Port : 5060 SIP Service Domain : tel.telefoniedienst.nl (different than SIP server) RTP Port Range: 16384-32767 Expiration Duration: 6000 s Register Re-send timer: 512 s Session Expires: 1800 s Min-SE: 1800 s Enable Early Media: Yes And this is what I have in my Freeswitch SIP gateway profile: <gateway name="telfort"> <param name="username" value="020NNNNNNN"/> <param name="auth-username" value="020NNNNNNN"/> <param name="from-user" value="020NNNNNNN"/> <param name="realm" value="tel.telefoniedienst.nl"/> <param name="from-domain" value="tel.telefoniedienst.nl"/> <param name="proxy" value="sip.telefoniedienst.nl"/> <param name="password" value="XXXXXXXX"/> </gateway> It seems like the registration goes through OK, but when I try calling out, I get 013-02-19 10:00:37.236188 [NOTICE] sofia.c:6385 Hangup sofia/external/0651142219 [CS_EXCHANGE_MEDIA] [CALL_REJECTED]
In cases where the provider is so totally foolish like this you have two choices: * Use their foolishness against them and make them think your FreeSWITCH server is really something else
Well, I tried to claim the problem was with the ADSL gateway as well, and they just kept sending the same setup instructions and advice to reboot the gateway. Not helpful.
* Switch providers
I agree, and I am seriously considering it - problem is that their Internet connection is pretty good and keenly priced, and the VoIP add-on to that is priced aggressively. Julf