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HiPath OpenOffice ME Collaboration with VoIP Providers via SIP Trunking will give you an overview of the supported VoIP providers in the different countries as well as additional considerations and hints.
General Information
SIP trunking features
- Up to 4 active SIP providers and one Internet connection
- Direct connection to DSL modem or operation behind another router using STUN
- SIP trunking with single numbers (MSN) or Direct Inward Dialing (DID)
- number of simultaneous VoIP connections is only limited by DSL bandwidth
- automatic fallback to ISDN at SIP trunk failure
- G.711 and G.729 Codecs are supported by the OpenOffice appliance
- Fax over IP with T.38 planned for minor release 4
General requirements
- Intermediate routers shall support quality of service and bandwidth control mechanisms if the WAN link is used for voice and data simultaneously.
SIP Provider dependent restrictions
- to be provided -
Tested VoIP providers by countries
The following providers have been successfully tested by development or customer:
| Country | VoIP Provider | Available |
|---|---|---|
 Germany
|
Arcor | DID |
| freenetBusiness | DID | |
| sipgate | MSN, DID[1] | |
| toplink | MSN, DID | |
 The Netherlands
|
Priority Telecom | MSN |
 Slovenia
|
Amis | MSN |
| Detel | MSN | |
| tustelekom | DID | |
| UPC Telemach | MSN | |
 Spain
|
Xtra Telecom | MSN |
 United States of America
|
Sotel | MSN, DID |
- ↑ For availability of DDI account by sipgate, please refer to http://www.sipgate.de
