Howto:VoIP-Telecom - SIP Provider Compatibility Test

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Voip-Telecom innovaphone Compatibility Test Report



SIP Provider: VoIP-Telecom

The provider supports all required innovaphone features and is therefore qualified as recommended SIP Provider.

That beeing said, the provider has achieved 97,5% of all possible test points (117 on total of 120 Points). For more information on the test rating, please refer to Test Description

The Provider have NAT Detection system so we don't need to use STUN Server to work with. It's recommended to use media-relay to guarantee that there is no problem with media in some type of calls (like external transfers).

It's required by the provider that user send 0 as prefix before the full number. Ex: 0 + 00497031730090.

  • Features:
    • Direct Dial In
    • Fax over IP (T.38)
    • DTMF
    • NAT Detection
    • Suppress the Number if Requested.

  • Supported Codecs by the provider
    • G711
    • G729
    • G723
    • T.38 UDP

Current test state

The tests for this product have been completed.

Testing of this product has been finalized July 22, 2011.

Testing Enviroment

Scenario NAT


This scenario describes a setup where the PBX and phones are in a private network. The IP800 should use a stun server, in order to send correct SIP - messages. The IP800 works as media relay, all RTP - streams go through the PBX.

Test Results

For more information on the test procedure, please read the following wiki article: SIP Interop Test Description. Bold lines in the test results indicate a KO-criteria.

Tested feature Result
Call using g711a Yes
Call using g711u Yes
Call using g723 Yes
Call using g729 Yes
Overlapped sending Yes
Early media channel Yes
Fax using T.38 Yes
CGPN can be suppressed Yes
CLIP no screening Yes
Reverse Media Negotiation Yes
Long time call possible Yes
External Transfer Yes
NAT Detection Yes
Voice Quality OK? Yes

Direct Dial In

Tested feature Result
Inbound(Provider -> Innovaphone) Yes
Outbound(Innovaphone -> Provider) Yes


Tested feature Result
DTMF tones sent correctly Yes
DTMF tones sent correctly via SIP-Info No
DTMF tones received correctly Yes


Tested feature Result
Call can be put on hold Yes
Held end hears music on hold / announcement from PBX Yes

Transfer with consultation

Tested feature Result
Call can be transferred Yes
Held end hears music on hold Yes

Transfer with consultation (alerting only)

Tested feature Result
Call can be transferred Yes
Held end hears music on hold or dialling tone Yes
Call returns to transferring device if the third Endpoint is not available Yes

Blind Transfer

Tested feature Result
Call can be transferred Yes
Held end hears dialling tone Yes

Broadcast Group & Waiting Queue

Tested feature Result
Caller can make a call to a Broadcast Group Yes
Caller can make a call to a Waiting Queue Yes
Announcement if nobody picks up the call Yes


Firmware version

All innovaphone devices use V9hf1 build 90600.01 as firmware.

SIP - Trunk


Number Mapping


We should add 0 on CDPN Out maps so users don't need to dial extra 0 to the Provider.

Route Settings

Since the Provider support Overlap sending there is no need to use "force enblock" option in the routes. We recommend the use of "Interworking QSIG/SIP" option in the routes.

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