Howto:Tele2(Sweden) SIP Provider Compatibility Test: Difference between revisions
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Revision as of 19:55, 26 March 2008
Innovaphone Compatibility Test Report
The tests for this product have been completed.
Summary
SIP Provider: Tele2(Sweden)
- Features:
- Direct Dial In
- Fax over T.38
- DTMF
- Supported Codecs by the provider
- G711
- G729
- T.38
The provider supports all required innovaphone features and is therefore qualified as recommended SIP Provider.
The configuration on innovaphone side is difficult, since you must use the VoIP-GW to connect to the provider.
Tele2 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.
The Tele2 support team was very fast and made an overall good impression.
Innovaphone tested the swedish branch of the SIP Provider Tele2, therefore this test is more relevant for our nordic partners. This test results are not representative for other branches of Tele2, since the hardware will probably differ from site to site.
Current test state
The tests for this product have been completed. See the Summary section for more details.
Testing of this product has been finalized October 23th, 2007.
Testing Enviroment
Scenario
This scenario tries to be as simple as possible. The IP - PBX and the phones are all in the same network, having public IP - adresses. The signalling channel will pass through the PBX, the media channel will go from endpoint (phone) to endpoint (provider).
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 | No |
call using g729 | Yes |
Overlapped sending | No |
early media channel | Yes |
Fax using T.38 | Yes |
CGPN can be supressed | No |
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
General Information
Firmware version
- IP800: 6.00 dvl-sr1 IP800[07-60600.74]
- IP22: 6.00 sr1-hotfix4 IP22[07-60600.72]
- IP200: 6.00 dvl-sr1 IP230[07-60600.58]
- IP230: 6.00 dvl-sr1 IP230[07-60600.58]
SIP - Trunk
First of all the SIP Trunk must be configured. Since Tele2 authenticates a user account only by IP - Address, you cannot use the normal SIP-Gateway object. You need to configure a GW without registration and route the calls to the PBX. Also Tele2 uses different servers for load balancing reasons. YOu must make an GW without registration object for every possible IP-destination(e.g. Tele2 SIP Server).
Like described, before you need a Gateway for every possible Tele2 SIP Server. Note that the Server Adrress on the two GWs changes, while the Domain entry does not. Another important setting is to change the SIP Interop Tweak from AOR to CGPN in user part of URI on both GWs(i.e. GW1 & GW3). You have to do this, because Tele2 does not read the Preffered identity header information but looks directly in the FROM header for DDI information.
Number Mapping
The complicated part on this issue is the correct mapping of the outgoing and incoming numbers. Tele2 is very restrictive on the outgoing calling party number. You must use exactly the trunk number, that you received at your registration.(i.e. 085225540) If you use a different CGPN format (i.e. +4685225540), the call will be rejected.
Route Settings
Because Tele2, 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 your 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.
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.