Collaboration with VoIP Providers

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◄ Platforms

Released VoIP Providers with HiPath 3000 / Hipath OpenOffice EE and HiPath OpenOffice ME(Providers per system see below)
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Released VoIP Providers with HiPath 3000 / Hipath OpenOffice EE and HiPath OpenOffice ME
(Providers per system see below)

Collaboration with VoIP Providers via SIP Trunking (also known as ITSP) is an important topic in the todays world of Voice/Data Communication over the Internet. The following information will give an overview of the supported VoIP providers in the different countries as well as additional considerations and hints to the connected platforms.

Contents

Overview

The SME HiPath platforms have been tested with a large number of Internet telephony providers that support SIP. Continuously new providers are tested, released and included within HiPath administration. As the SIP recommendations leave some room for interpretation, there are differences in the range of features supported with a specific provider. In this chapter general information is given which is valid for all platforms and all SIP Providers.

SIP trunking features for all SME HiPath platforms

  • 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) and up to 30 SIP user accounts
  • Direct Inward Dialing (DID)
  • most important features like transfer and call forwarding available
  • number of simultaneous VoIP connections is only limited by DSL bandwidth
  • automatic fallback to ISDN at SIP trunk failure
  • Voice Codecs G.711, G.729 and G.723
  • Fax over IP via T.38 (or G.711)

Interoperability with Carrier VoIP Platforms

The SME platforms with SIP Stack 4.0.26 have been validated with the BroadWorks SIP Interface. BroadWorks is the Carrier VoIP solution from Broadsoft, the global market leader.

General Requirements for VoIP

  • LAN with 10/100/1000 MBit/s and no more than 40% network load
  • Separate port on the switch or router for every component in the IP network (no hubs as concentrators)
  • Not more than 50 ms delay in one direction (One Way Delay); not more than 150 ms total delay
  • Not more than 3% packet loss and 20 ms jitter
  • Quality of Service (QoS) support - IEEE 802.p, DiffServ (RFC 2474) or ToS (RFC 791)
  • Sufficient WAN bandwidth (uplink and downlink) for intended simultaneous calls and CODEC
  • External modem, such as a DSL modem
  • Intermediate routers shall support quality of service and bandwidth control mechanisms if the WAN link is used for voice and data simultaneously. SIP messages have to be routed transparently.

Restrictions for all Providers and SME HiPath Platforms

  • Special call numbers and emergency calls
    • Special call numbers (e.g. 0800, 0900, 0137) or analog fax/modem connections are not supported by all SIP providers.
    • Emergency call numbers (e.g. 110, 112) are not supported by most providers. These connections must be implemented via S0 access (administration default)
  • Only one external destination is allowed for ringing groups which are to be called via SIP trunk from VoIP provider.
  • SIP trunks can not be used for dialing through or direct inward system access with DTMF tones e.g for the feature Mobility Entry. Please use a TDM line for those features.
  • DTMF is supported via RFC 2833 or inband. SIP INFO method is not supported.
  • For Fax transmission the T.38 protocol is highly recommended. Fax pass through using codec G.711 has been found much less reliable in most SIP provider environments. If your provider does not yet support Fax T.38, Fax pass through with G.711 is possible but there is no warranty or further support.

General Information by platform

For discontinued platforms see Collaboration with VoIP Providers (discontinued platforms).

HiPath OpenOffice EE

SIP trunking features

  • see overview
  • Up to 32 simultaneous calls (depending on the available bandwidth and used CODEC)

Configuration

HiPath OpenOffice EE V1 Configuration Guide for Internet Service Providers:

HiPath 3000

HiPath 3000 ≥V7 with HG 1500 can be used for SIP trunking in the same way as HiPath OpenOffice EE.

  • see overview
  • An external router is always necessary

HiPath OpenOffice ME

SIP Trunking features

  • See overview.
  • G.711 and G.729 codecs are supported by the HiPath OpenOffice appliance.
  • For Call Forwarding to SIP provider the display of original caller number is not yet supported, announcements before connect are not audible.
  • FoIP (FAX over IP) with T.38 is available since the release of HiPath OpenOffice ME V1 R4 for FAX devices connected to Analog ports or Terminal Adapters. For FAX communication with OpenScape Office (OSO) a TDM Trunk has to be used.
    • The following T.38 FAX scenarios via ITSP are supported by HiPath OpenOffice ME:
      • 1. FAX devices (G.3) connected to an a/b (Analog) subscriber port of an HiPath GMSA, GMAA or GMAL Module or FAX devices (G.4) connected to a BRI/S0 (Digital) subscriber port of an HiPath GMSA or GMS Module.
      • 2. FAX devices (G.3) connected to an Analog port of an HiPath AP1120 Terminal Adapter (with SIP Loadware).
    • Currently not supported:
      • FAX services via ITSP from/to OpenScape Office client applications.

Configuration

HiPath OpenOffice ME V1 Configuration Guide for Internet Telephony:

Tested VoIP Providers by Countries

The main SIP trunking functions of the HiPath platforms have been tested with the following Internet telephony providers. For detailed information see Released SIP Providers below.

Image:tick.gif = has been successfully tested by development or customer
DID = accounts for PBX-trunking / Direct Inward Dialling
MSN = accounts for single number(s)

International

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
COLT DID Image:tick.gif Image:tick.gif Image:tick.gif

Please check provider home page for supported countries.

Australia

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
engin MSN
DID 		Image:tick.gif
Image:tick.gif

Austria

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
inode MSN Image:tick.gif Image:tick.gif
WNT DID Image:tick.gif Image:tick.gif

Belgium

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
Belgacom Image:tick.gif
Hexacom Image:tick.gif Image:tick.gif

for details on Type please refer to pdf-file below

Canada

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
thinktel Image:tick.gif

Germany

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
1&1 MSN Image:tick.gif Image:tick.gif
Arcor DID Image:tick.gif Image:tick.gif Image:tick.gif
freenet MSN Image:tick.gif Image:tick.gif
freenetBusiness DID Image:tick.gif Image:tick.gif
GMX MSN Image:tick.gif Image:tick.gif
Purtel MSN Image:tick.gif Image:tick.gif
QSC DID Image:tick.gif Image:tick.gif
sipgate MSN
DID 		Image:tick.gif Image:tick.gif Image:tick.gif
Image:tick.gif [1]
T-Online MSN Image:tick.gif Image:tick.gif
T-Systems BAIP DID
toplink MSN
DID 		Image:tick.gif
Image:tick.gif 		Image:tick.gif
Image:tick.gif 		Image:tick.gif
Image:tick.gif
XSip DID Image:tick.gif Image:tick.gif
  1. ↑ For availability of DDI account by sipgate, please refer to http://www.sipgate.de

Greece

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
FORTHnet Image:tick.gif
HellasOnLine Image:tick.gif
ViVodi Image:tick.gif

Italy

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
Infracom (ex Multilink) Image:tick.gif Image:tick.gif
BT Italia DID Image:tick.gif
Welcome Italia DID Image:tick.gif

The Netherlands

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
I2Connect MSN
DID 		Image:tick.gif
Image:tick.gif 		Image:tick.gif
Image:tick.gif
Infopact MSN
DID 		Image:tick.gif
Image:tick.gif 		Image:tick.gif
Image:tick.gif 		Image:tick.gif
Priority Telecom MSN
DID 		Image:tick.gif Image:tick.gif Image:tick.gif

Portugal

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
G9-Telecom Image:tick.gif
netcall Image:tick.gif Image:tick.gif

Slovenia

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
Amis MSN
DID 		Image:tick.gif Image:tick.gif Image:tick.gif
Detel MSN
DID 		Image:tick.gif Image:tick.gif Image:tick.gif
tustelekom DID Image:tick.gif Image:tick.gif Image:tick.gif
UPC Telemach MSN
DID 		Image:tick.gif Image:tick.gif Image:tick.gif

South Africa

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
Telfree MSN
DID 		Image:tick.gif
Image:tick.gif

Spain

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
vozelia MSN
DID 		Image:tick.gif
Image:tick.gif 		Image:tick.gif
Image:tick.gif
Xtra Telecom MSN
DID 		Image:tick.gif Image:tick.gif Image:tick.gif

Sweden

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
Telia MSN Image:tick.gif Image:tick.gif

Switzerland

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
sipcall MSN Image:tick.gif
vtx DID Image:tick.gif

United Kingdom

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
Voiceflex DID Image:tick.gif 1)

1) minor restrictions to be solved with V1 R4 (external transfer, DTMF inbound)

United States of America

VoIP Providers Type HiPath 3000 HiPath OpenOffice EE HiPath OpenOffice ME
Cbeyond Image:tick.gif Image:tick.gif
Sotel MSN
DID 		Image:tick.gif
Image:tick.gif

Released SIP Providers in Detail

The table provided here shows the ITSP providers that were successfully checked in a connectivity test. More details about test results are given in the pdf-file Overview of released SIP providers below. Informations concerning CLIP, CLIR, COLP etc. are listed, restrictions may be reported as well.

Connectivity Test Information

The connectivity test is carried out with

Tests are done for MSN- and DID-account (as long as the provider´s realm is different), also the platforms are checked as NAT router and / or behind a router.

Several test scenarios are clustered in the test list, main issues are:

  • Registration
  • Basic Calls from / to ITSP
  • Feature Tests
    • Consultation, transfer, toggle, conference
    • Call Pickup / ringing group scenarios
    • call forwarding scenarios
    • DTMF
    • CLIP / CLIR
    • COLP / COLR
    • FAX
  • Special Tests
    • emergency calls
    • service calls
    • long duration calls

The connectivity tests are performed using the following endpoints:

  • Analogue
  • ISDN
  • HFA-phones
  • UP0 phones
  • SIP-phones
  • AP 1120 HFA / SIP
  • optiClient 130 HFA
  • WLAN2-phones HFA / SIP

At least 3 different types of phones are used for each test case.

Frequently asked Questions

External Links

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