SIP Providers
At the time of general availability IP Office 4.0 has been successfully tested with the following ITSP SIP providers*1. This table of providers is a statement of fact and not any form of recommendation from Avaya, nor does it exclude other service providers. Any details of the expect operation and service should be confirmed in writing with the individual service provider.
Country |
ITSP |
Details |
Australia |
Engin |
|
iSPhone |
||
MyTel |
||
Soul |
||
Belgium |
McDOS |
|
Canada / USA |
Les.net |
|
Denmark |
Dansk Erhvervs Telefoni |
|
France |
Axialys |
|
Germany/Europe |
Sip Discount |
|
VoipBuster |
||
Germany |
QSC |
|
Italy |
Eutelia SpA |
|
KEBU S.r.l. |
||
Messagenet |
||
Telematic Service |
||
Viatek |
||
Latvia |
MEGAFON |
|
Netherlands |
Priority Telecom |
|
Qore Networks |
||
UK |
AQL |
|
DrayTEL |
||
Gamma |
||
Sipgate*1 |
||
VoiceFlex |
||
VoipCheap |
||
Voip-Unlimited |
||
USA |
AGN |
|
AT&T/SBC |
||
Bandtel |
||
CBeyond |
||
Curry IP Solutions |
||
FWD / Free-World Dialup |
||
Global Crossing |
IP Office 4.0 supports SIP using UDP or TCP. For UDP SIP, STUN is supported for NAT Firewall traversal. Otherwise use of a service provider supporting Session Border Control (SBC) is required. TURN, sometimes used for TCP SIP traversal of NAT firewalls, is not supported.
The IP Office implementation of SIP conforms to the following SIP RFC's.
RFC |
Description |
2833 [7] |
RTP Payload for DTMF digits, telephony tones and telephony signals. |
3261 [8] |
SIP Session Initiation Protocol. |
3264 [11] |
An Offer/Answer Model with Session Description Protocol (SDP). |
3323 [14] |
A Privacy Mechanism for SIP |
3489 [18] |
STUN - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NAT's). |
3824 [24] |
Using E.164 Numbers with the Session Initiation Protocol (SIP). E.164 is the ITU-T recommendation for international public telecommunication numbering plans. |
-
*2: The SIPGate service does not support RFC2833 for the sending of DTMF tones. SIPGate uses the alternate SIP INFO method which is not supported by the IP Office.