Howto:TWT S.p.a. SIP Provider Compatibility Test: Difference between revisions
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Revision as of 16:30, 12 May 2015
Innovaphone Compatibility Test Report
Summary
SIP Provider: TWT S.p.a.
The provider supports all required innovaphone features and is therefore qualified as recommended SIP Provider.
The provider has achieved 82% (132 out of 161 points) of all possible test points. For more information on the test rating, please refer to Test Description
This provider supports DDI only through a trunk configuration without authentication. For this reason a Gateway interface w/out authentication must be used. Also NAT detection is not supported so media relay with exclusive coder and a STUN server must be configured (port forwarding for port 5060 must be configured on NAT Router toward local gateway ip address).
Additionally phones must be configured to use a coder framesize of 20 ms since this is the only value supported by TWT.
Since media relay and an exclusive coder setting must be configured, opposed to a SIP trunk not needing Media-Relay, the transport of all RTP packets by the gateway will result in a higher CPU load for a call. As a result, the amount of concurrent calls is considerably lower compared to a SIP-Provider that doesn't require Media-Relay.
- Features:
- Direct Dial In
- Fax over IP (T.38)
- DTMF
- Supported Codecs by the provider
- G711a
- G711u
- G729
- G722
- T.38 UDP
Current test state
This product is listed due to a customer testimonial. No tests have been conducted by innovaphone.
Testing of this product has been finalized May 12, 2015.
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 with Media Relay, STUN and exclusive coder. This is the case when the test for "NAT Traversal" 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.
Basic Call
Tested feature | Result |
---|---|
SIP over TLS(SIPS) | N/A |
SIP over TCP | N/A |
SRTP | NOK |
call using g711a | OK |
call using g711u | OK |
call using g723 | NOK |
call using g729 | OK |
call using g722 | OK |
Overlapped sending | NOK |
early media channel | OK |
Fax using T.38 | OK |
T.38 Transcoding by the provider | NOK |
Fax using G.711 | OK |
Reverse Media Negotiation | N/A |
CGPN can be suppressed | NOK |
CLIP no screening | NOK |
Long time call possible(>30 min) | OK |
External Transfer | OK |
NAT Detection | NOK |
Redundancy | OK* |
Voice Quality OK? | OK |
* Note to Redundancy: the provider can send signalling to a secondary public ip address if primary does not respond.
Direct Dial In
Tested feature | Result |
---|---|
Inbound(Provider -> Innovaphone) | OK |
Outbound(Innovaphone -> Provider) | OK |
Loop In call(Innovaphone -> Provider -> Innovaphone) | OK |
DTMF
Tested feature | Result |
---|---|
DTMF tones sent correctly via RTP-events(RFC 2833) | OK |
DTMF tones sent correctly via SIP-Info | N/A |
DTMF tones received correctly via RTP-events(RFC 2833) | 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 PSTN-phone. | OK | OK |
inno1 calls PSTN-phone. inno1 transfers to inno2. | OK | OK |
inno1 calls PSTN-phone. PSTN-phone transfers to inno2. | OK | OK |
PSTN-phone calls inno1. inno1 transfers to inno2. | OK | OK |
PSTN-phone calls inno1. PSTN-phone transfers to inno2. | OK | OK |
PSTN-phone calls inno1. inno1 transfers to other PSTN-phone-2. | 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 PSTN-phone. | OK | OK |
inno1 calls PSTN-phone. inno1 transfers to inno2. | OK | OK |
inno1 calls PSTN-phone. PSTN-phone transfers to inno2. | OK | OK |
PSTN-phone calls inno1. inno1 transfers to inno2. | OK | OK |
PSTN-phone calls inno1. PSTN-phone transfers to inno2. | OK | OK |
PSTN-phone calls inno1. inno1 transfers to other PSTN-phone-2. | 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 PSTN-phone. | OK |
inno1 calls PSTN-phone. inno1 transfers to inno2. | OK |
inno1 calls PSTN-phone. PSTN-phone transfers to inno2. | OK |
PSTN-phone calls inno1. inno1 transfers to inno2. | OK |
PSTN-phone calls inno1. PSTN-phone transfers to inno2. | OK |
PSTN-phone calls inno1. inno1 transfers to other PSTN-phone-2. | OK |
CFU / CFB Transfer
Tested feature | Result |
---|---|
Call can be forward | OK |
Held end hears dialling tone | OK |
CFNR / Blind Transfer (alerting only)
Tested feature | Result |
---|---|
Call can be transferred or forward | 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 PSTN-phone. | OK |
inno1 calls PSTN-phone. PSTN-phone transfers to inno2. | OK |
PSTN-phone calls inno1. inno1 transfers to inno2. | OK |
PSTN-phone calls inno1. inno1 transfers to other PSTN-phone-2. | 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 V11r2 build 11.3127 as firmware.