Howto:Skype Connect - SIP Testreport

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Innovaphone Compatibility Test Report

Summary

SIP Provider: Skype

  • The mandatory feature Early Media is not supported by Skype Connect, the provider never sends any Session Progress message to the PBX before call establishment.
  • Skype connect rejects calls with Diverting-info, special configuration is required[1].


  • Caller identification using your Skype Number is available in:
    • USA
    • UK
    • Chile
    • Denmark
    • Estonia
    • Hong Kong
    • Poland
    • Sweden
  • As alternative we could verify a landline number using the Verify Procedure of Skype or use a mobile phone as Caller ID. However even these verified numbers are only available for limited countries.

Current test state

The tests for this product could not be completed or not all mandatory tests were passed. See the Summary section for more details.

Testing of this product has been finalized December 20th, 2012.

Testing Enviroment

HFO SIP Compatibility Test 5.PNG

This scenario describes a setup where the PBX and phones are in a private network.

  • the SIP trunk is configured without Media Relay and without exclusive coder.

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.

Basic Call

Tested feature Result
call using g711a OK
call using g711u OK
call using g723 NOK
call using g729 OK
call using g722 NOK
Overlapped sending NOK
early media channel NOK, no SDP in 18x messages.
Fax using T.38 Not supported as written on product description, not tested
Reverse Media Negotiation OK
CGPN can be suppressed OK
CLIP no screening NOK
Long time call possible(>30 min) OK
External Transfer OK
NAT Detection OK
Redundancy Not tested
SIP over TCP NOK, no _tcp serv ice record in skype.com domain
Voice Quality OK? OK

Direct Dial In

Tested feature Result
Inbound(Provider -> Innovaphone via SkypeIn Number) OK
Inbound(Provider -> Innovaphone via Skype User) OK
Outbound(Innovaphone -> Provider) OK

DTMF

Tested feature Result
DTMF tones sent correctly OK
DTMF tones sent correctly via SIP-Info NOK
DTMF tones received correctly OK

Hold/Retrieve

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

Transfer with consultation

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

The following tests are made to test if call transfer is working.

Tested feature Voice Ok? MoH Ok?
inno1 calls inno2. inno2 transfers to sip-provider-phone. OK OK
inno1 calls sip-provider-phone. inno1 transfers to inno2. OK OK
inno1 calls sip-provider-phone. sip-provider-phone transfers to inno2. OK OK
sip-provider-phone calls inno1. inno1 transfers to inno2. OK OK
sip-provider-phone calls inno1. sip-provider-phone transfers to inno2. OK OK

Transfer with consultation (alerting only)

Tested feature Result
Call can be transferred OK
Held end hears music on hold or dialling tone OK
Call returns to transferring device if the third

Endpoint is not available

OK

The following tests are made to test if call transfer is working.

Tested feature Voice Ok? MoH Ok?
inno1 calls inno2. inno2 transfers to sip-provider-phone. OK OK
inno1 calls sip-provider-phone. inno1 transfers to inno2. OK OK
inno1 calls sip-provider-phone. sip-provider-phone transfers to inno2. OK OK
sip-provider-phone calls inno1. inno1 transfers to inno2. OK OK
sip-provider-phone calls inno1. sip-provider-phone transfers to inno2. OK OK

Blind Transfer

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

The following tests are made to test if call transfer is working.

Tested feature Voice Ok?
inno1 calls inno2. inno2 transfers to sip-provider-phone. OK
inno1 calls sip-provider-phone. inno1 transfers to inno2. OK
inno1 calls sip-provider-phone. sip-provider-phone transfers to inno2. OK
sip-provider-phone calls inno1. inno1 transfers to inno2. OK
sip-provider-phone calls inno1. sip-provider-phone transfers to inno2. OK

CFU/ CFB Transfer

Tested feature Result
Call can be forward OK [1]
Held end hears dialling tone OK


CFNR/Blind Transfer (alerting only)

Tested feature Result
Call can be transferred or forward OK [1]
Held end hears dialling tone OK


The following tests are made to test if call transfer is working.

Tested feature Voice Ok?
inno1 calls inno2. inno2 transfers to sip-provider-phone. OK
inno1 calls sip-provider-phone. sip-provider-phone transfers to inno2. OK
sip-provider-phone calls inno1. inno1 transfers to inno2. OK

Broadcast Group & Waiting Queue

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

Configuration

Firmware version

All innovaphone devices use V9 hf19 as firmware.

SIP - Trunk

Skype Connect - SIP Testreport 1.png

Number Mapping

Skype Connect - SIP Testreport 2.png

The Skype Caller ID for outgoing calls is defined on the Skype Manager page. For this reason, we don't define any CGPN Out value.

Route Settings

Skype Connect - SIP Testreport 3.png

You must set the Force enblock (b) option on the route for outgoing calls.

Known Issues

Skype Connect - SIP Testreport 4.png[1]

  1. 1.0 1.1 1.2 1.3 It is necessary to enable the Set Calling=Diverting No option on the Trunk Line object. If not, a diverted call is rejected by the provider with SIP 403 Forbidden because it contains Diverting Info.