Howto:Toplink SIP Provider Compatibility Test
Innovaphone Compatibility Test Report
Summary
SIP Provider: Toplink
The provider supports all required innovaphone features and is therefore qualified as recommended SIP Provider.
Toplink does not support the remote hold feature. When making a blind transfer(using redial key) the remote end will not get a MOH/dialtone from the provider.
That beeing said, Toplink has achieved 96% of all possible test points. For more information on the test rating, please refer to Test Description
- Features:
- Direct Dial In
- Fax over IP (T.38)
- DTMF
- Supported Codecs by the provider
- G711
- G729
- G723
- G726
- T.38 UDP
Current test state
The tests for this product have been completed and it has been approved as a recommended product (Certification document).
Testing of this product has been finalized August 8th, 2007.
Testing Enviroment
Scenario NAT
This scenario describes a setup where the PBX and phones are in a private network. The IP800 must 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.
Basic Call
| Tested feature | Result |
|---|---|
| call using g711a | Yes |
| call using g711u | Yes |
| call using g723 | Yes |
| call using g729 | Yes |
| Overlapped sending | No |
| early media channel | Yes |
| Fax using T.38 | Yes |
| CGPN can be supressed | Yes |
| Reverse Media Negotiaton | Yes |
| Voice Quality OK? | Yes |
Direct Dial In
| Tested feature | Result |
|---|---|
| Inbound(Provider -> Innovaphone) | Yes |
| Outbound(Innovaphone -> Provider) | Yes |
DTMF
| Tested feature | Result |
|---|---|
| DTMF tones sent correctly | Yes |
| DTMF tones received correctly | Yes |
Hold/Retrieve
| Tested feature | Result |
|---|---|
| Call can be put on hold | Yes |
| Held end hears music on hold / announcement from PBX | Yes |
| Held end hears music on hold / announcement from provider | No |
Transfer with consultation
| Tested feature | Result |
|---|---|
| Call can be transfered | Yes |
| Held end hears music on hold | Yes |
| Call returns to transferring device if the third
Endpoint is not available |
Yes |
Transfer with consultation (alerting only)
| Tested feature | Result |
|---|---|
| Call can be transfered | Yes |
| Held end hears music on hold or dialing tone | Yes |
| Call returns to transferring device if the third
Endpoint is not available |
Yes |
Blind Transfer
| Tested feature | Result |
|---|---|
| Call can be transfered | Yes |
| Held end hears dialing tone | No |
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 |
Configuration
Firmware version
All innovaphone devices use V6 SR1 HF3 as firmware.
SIP - Trunk
First of all the SIP Trunk must be configured. Here an example of our Toplink - Trunk. If you want that the Gateway should act as Medialrelay, you must exchange the Gatekeeper Address (blue marking) to an private network address (see Media Relay (Scenario 2 only)); for example 127.0.0.1
Number Mapping
The complicated part on this issue is the correct mapping of the outgoing and incoming numbers.
Route Settings
Because Toplink, as most SIP - Providers too, doesn't support overlap sending, you must enable the blockwise sending of the phone number. You can do this by enabling Force enblock in the automatically generated Routes.
The second setting you must check is Interworking(QSIG,SIP). This feature must be enabled to properly relay suplementary services, like Hold over the SIP Trunk. If this checkbox is unchecked only basic call Information like connect and disconnect will be forwarded by the Gateway.
Media Relay (Scenario 2 only)
By enabling Media Relay on the PBX, The IP800 will work as an RTP - Proxy, so all RTP Streams will travel through the IP800. This mode poses a much greater load on the PBX, so the number of concurrent calls will be heavy limited.
You may wonder about the usefullness of putting the localhost address as a private network. However you must insert this entry, if the IP800 SIP GW registers at the PBX on localhost interface.
Fax
The FAX was connected via a IP22 to the IP800. When configuring the IP22 you must keep in mind that you will use the analog interface for fax communication. Thats why the T.38 codec must be enabled.
Now the PBX and the phones are setup correctly. You should be able to make call in both directions and send and receive fax messages.