While SIP interoperability in general has made significant progress, it is still required to test interoperability with each and every ITSP to make sure all the required features for successful SIP trunking work. the following is the current list of ITSPs that we were able to test against. This list highly depends on the availability of suitable test accounts. Should your preferred provider be missing and you would like to get it added, please say so on the sipx-dev mailing list. If you can provide a test account together with your request, then that would increase the chances of getting help with resolving interoperability issues.
Required parameters for different ITSP
Provider (ITSP) | Domain ITSP | Server Address | Global addr | Registrar | Reg On Init | Default Asserted Identity | SIP keepalive | RTP keepalive |
|---|---|---|---|---|---|---|---|---|
bandwidth.com | ot.bandwidth.com | n/a (blank) | true | n/a | false | true | CR-LF | NONE |
att.com | Specified by AT&T | n/a (blank) | true | n/a | false | true | CR-LF | NONE |
bt.com | sip.ser-001.nat.bt.com | 81.144.230.5 | false | default | true | true | CR-LF | replay last sent packet |
cbeyond.net | sipconnect-fca.atl0.cbeyond.net | sip-proxy-fca.atl0.cbeyond.net | true | default | true | true | CR-LF | NONE |
voxitas.com | wdc01a.netlogic.net | wdc01a.netlogic.net | false | default | true | true | CR-LF | NONE |
sipcall.ch | voipgateway.org | n/a (blank) | true | default | true | true | CR-LF | replay last sent packet |
callwithus.com | sip.callwithus.com | n/a (blank) | true | default | true | true | CR-LF | empty packet |
voipuser.org | sip.voipuser.org | n/a (blank) | false | default | true | true | CR-LF | empty packet |
les.net | did.voip.les.net | n/a (blank) | false | default | true | true | CR-LF | empty packet |
eutelia.it | voip.eutelia.it | n/a (blank) | true | default | true | true | CR-LF | empty packet |
vitelity.net | vitelity.net | outbound.vitelity.net | true | inbound8.vitelity.net (supplied by ITSP) | true | true | CR-LF | empty packet |
vitaltalk.com | vitaltalk.com | chicago-1a.vtnoc.net | true | default | true | true | CR-LF | replay last sent packet |
voip.ms | voip.ms | n/a (blank) | true | default | true | true | CR-LF | NONE |
callcentric.com | callcentric.com | 204.11.192.31 (pick same registrar and proxy address) false | 204.11.192.31 | true | true | CR-LF | NONE` | |
simplesignal.com | sip.myvtel.com | n/a (blank) | true | default | true | uncheck ( leave PAI blank ) | CR-LF | NONE |
bluesip.net | bluesip.net | leave blank | true | default | true | true | CR-LF | NONE |
unlimitel.ca | unlimitel.ca | sip.unlimitel.ca | true | default | true | uncheck (leave PAI blank) | CR-LF | replay last sent packet |
flowroute.com | sip.flowroute.com | n/a (leave blank) | true | default | true | true | CR-LF | replay last sent packet |
| Warning |
|---|
An entry in the table does not guarantee that the ITSP is well behaved or of good quality. An entry in the table indicates that somebody ( for example, member of the sipXecs user community ) has tried out the ITSP and has reported that it worked and has shared their settings. |
Templates for many of the above providers are provided for easy configuration of the system.
SipXbridge has been tested successfully for interoperability with Nortel CS1000 (release6) systems. In addition to the settings in the table above, you will also need to configure your Caller-ID setting for the account as described below.
The SIP trunking capabilities of sipXecs (or sipXbridge) should extend far beyond the list of ITSP included in the table above. There are simply too many ITSPs so that we cannot test with them all. You can help extend the list. We are in the process of defining test procedures for ITSP interoperability testing and certification.