Howto:Skype Connect - SIP Testreport

Innovaphone Compatibility Test Report

Summary

SIP Provider: Skype

Current test state

This product is being tested right now. The test is not yet completed.

Testing Enviroment

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

There are 3 major configuration variants of the SIP trunk, which one is used depends on the test results. The variants are:

• the SIP trunk is configured without Media Relay and without exclusive coder. This is the case if all tests were successful
• the SIP trunk is configured with Media Relay and STUN but without exclusive coder. This is the case when the test for "NAT Traversal" fails
• the SIP trunk is configured with Media Relay and exclusive coder. This is the case when the test for "Reverse Media Negotiation" fails

The test scenario should describe which SIP trunk configuration is needed.

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.

FIXME: Note: Possible test results are Ok, Nok, Not tested, N/A(not available). Ok, Nok, N/A are self explanatory. "Not tested" is more a temporary note - if its still in the test after finishing, then the summary should explain why the feature was not tested. Remove this note in the final report

Basic Call

Tested feature	Result
call using g711a	Nok, if call rejected at PSTN - no Cancel from PSTN side. In addition calls to the PSTN were signalled also to completely unknown PSTN number, were the call was answered and played to calling phone while PSTN phone was still ringing.
call using g711u	OK
call using g723	NOK
call using g729	OK
call using g722	NOK
Overlapped sending	Nok
early media channel	Could not be tested, calls to unknown numbers are not signalled correctly at calling phone. No SDP in 18x messages, therefore NOK
Fax using T.38	Not supported as written on product description, not tested
Reverse Media Negotiation	Ok
CGPN can be suppressed	CGPN not displayed
CLIP no screening	CGPN not displayed
Long time call possible(>30 min)	Not tested
External Transfer	Not tested
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)	Not tested
Outbound(Innovaphone -> Provider)	Nok, CGPN shown as anonym

DTMF

Tested feature	Result
DTMF tones sent correctly	Nok via RFC-2833, only inband in RTP-Stream
DTMF tones sent correctly via SIP-Info	Nok
DTMF tones received correctly	Not tested

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, only with mediarelay. Without mediarelay no audio after transfer.
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.
inno1 calls sip-provider-phone. inno1 transfers to inno2.
inno1 calls sip-provider-phone. sip-provider-phone transfers to inno2.
sip-provider-phone calls inno1. inno1 transfers to inno2.
sip-provider-phone calls inno1. sip-provider-phone transfers to inno2.

Transfer with consultation (alerting only)

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

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.
inno1 calls sip-provider-phone. inno1 transfers to inno2.
inno1 calls sip-provider-phone. sip-provider-phone transfers to inno2.
sip-provider-phone calls inno1. inno1 transfers to inno2.
sip-provider-phone calls inno1. sip-provider-phone transfers to inno2.

Blind Transfer

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

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.
inno1 calls sip-provider-phone. inno1 transfers to inno2.
inno1 calls sip-provider-phone. sip-provider-phone transfers to inno2.
sip-provider-phone calls inno1. inno1 transfers to inno2.
sip-provider-phone calls inno1. sip-provider-phone transfers to inno2.

Blind Transfer (alerting only)

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

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.
inno1 calls sip-provider-phone. sip-provider-phone transfers to inno2.
sip-provider-phone calls inno1. inno1 transfers to inno2.

Broadcast Group & Waiting Queue

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

Configuration

Firmware version

All innovaphone devices use Vx build xx-xxxxx as firmware.