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Daniel Richter 
Daniel Richter
MCT | empowering businesses through modern communication with Microsoft Teams
Published Jan 24, 2023
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Intro
Connecting analog devices with Microsoft Teams is nothing new, but in the past customers had to rely on using an on-Prem SBC or PBX to connect the devices with the Microsoft Teams cloud. Back at Ignite, Microsoft announced that analog devices will be supported via their SIP-Gateway component which was a welcomed announcement since many of my customers are still using analog devices such as door openers or lift phones. The SIP Gateway has come a long way. Announced in December 2021, only certain SIP phones were supported but as of early 2023, that list has grown bigger quite a bit with Microsoft recently adding support for DECT devices and now analog devices.
The full list of supported vendors and devices can be found here
Supported ATAs:
Note: The support for the AudioCodes M500L will be enabled in the coming months.
For this guide, I will be using an AudioCodes MP112 with a Gigaset DA210 analog phone.
Preparing the MS Teams SIP Gateway
2. Enable the support for SIP devices in your tenant.
Head over to the TAC and select your Calling Policy. You can either edit an already existing one or create a new one for accounts used with the analog devices.
You can also use Powershell with the following command:
Set-CsTeamsCallingPolicy -Identity Global -AllowSIPDevicesCalling $true Please beware that changes made to this setting will take up to 24 hours to complete.
Preparing the AudioCodes MP-112
Please note: After these parameters are set the device will restart and your configuration will be replaced by a custom Microsoft configuration.
Parameter: inifileurl
Value: Choose one URL from below
EMEA
http://emea.ipp.sdg.teams.microsoft.com/mac.ini
Americas
http://noam.ipp.sdg.teams.microsoft.com/mac.ini
APAC
http://apac.ipp.sdg.teams.microsoft.com/mac.ini
If your tenant is hosted in EMEA choose http://emea.ipp.sdg.teams.microsoft.com/mac.ini as value
Parameter: AUPDResetURLOnWebConfig
Value: 1
Parameter: setdefaultoninifileprocess
Value: 1
In the end, the config should look like this
Your MP might restart during the application of the new values, don't worry.
You can check the value of the parameter by just entering the parameter name without the value and just hit Apply new value.
The preparations are now complete and we start the provisioning in Teams Admin Center.
If you are a tech nerd like me and wondering what settings changed and have been altered by Microsoft I compared the before and after INI files. I will post the changes in an appendix chapter.
Provisioning the MP and analog phone
2. Click Add MAC addresses manually and select ID type Hardware ID. Add the MAC address of your MP device and the port number of your FXS port in the following format: 00-xx-xx-xx-xx-xx:0xx where the last three digits represent the FXS port number. Since my phone is connected to FXS port 1 my last three digits are 001.
After the MAC address and port number have been added you should see a new entry in the Waiting on activation list. Click Generate verification code and note that a new Verification code has been created.
Please note that this code is only valid for 24 hours, after that a new code needs to be generated.
3. Now go to Waiting for sign in and select Sign in a user.
Plug in your analog phone and call *55*<verification code>, in my case *55*246948. You will hear a confirmation tone. Afterward, put the phone back down and continue in your browser with the remote login.
Open https://microsoft.com/devicelogin in your browser and copy the displayed code.
When asked by the browser enter the code and login with your shared device account. Please note that remote sign-in is only supported for shared device accounts.
After the Sign-In the following message should appear.
Congratulations, your analog phone can now be reached from outside and do outbound calls to the PSTN.
When you make a test call you will notice that calls to the analog line will also be logged by the activity center.
Appendix
Changes made by the custom Microsoft INI
[Voice Engine Params]RFC2833TxPayloadType = 101RFC2833RxPayloadType = 101ENABLEMEDIASECURITY = 1[SIP Params]ENABLECALLERID = 1MAXDIGITS = 18ISSPECIALDIGITS = 1REGISTRATIONTIME = 60ISREGISTERNEEDED = 1GWDEBUGLEVEL = 5ENABLEMWI = 1HOLDFORMAT = 1MEDIASECURITYBEHAVIOUR = 1ENABLE3WAYCONFERENCE = 1ENABLEGRUU = 1DNSQUERYTYPE = 1PROXYDNSQUERYTYPE = 1OOSONREGISTRATIONFAIL = 1ENABLESIPREMOTERESET = 1SetDefaultOnIniFileProcess = 03WAYCONFERENCEMODE = 2[ PREFIX ]FORMAT PREFIX_Index = PREFIX_DestinationPrefix, PREFIX_DestAddress, PREFIX_SourcePrefix, PREFIX_ProfileId, PREFIX_MeteringCode, PREFIX_DestPort, PREFIX_SrcIPGroupID, PREFIX_DestHostPrefix, PREFIX_DestIPGroupID, PREFIX_SrcHostPrefix, PREFIX_TransportType, PREFIX_SrcTrunkGroupID, PREFIX_DestSRD, PREFIX_CostGroup, PREFIX_ForkingGroup, PREFIX_CallSetupRulesSetId;PREFIX 0 = "*", "obsbc-euwe.sdg.teams.microsoft.com", "*", 0, 255, 0, -1, "", -1, "", -1, 1, -1, "", -1, -1;PREFIX 1 = "*", "obsbc-euwe.sdg.teams.microsoft.com", "*", 0, 255, 0, -1, "", -1, "", -1, 2, -1, "", -1, -1;[ \PREFIX ][ TrunkGroup ]FORMAT TrunkGroup_Index = TrunkGroup_TrunkGroupNum, TrunkGroup_FirstTrunkId, TrunkGroup_FirstBChannel, TrunkGroup_LastBChannel, TrunkGroup_FirstPhoneNumber, TrunkGroup_ProfileId, TrunkGroup_LastTrunkId, TrunkGroup_Module;TrunkGroup 0 = 1, 255, 1, 1, "removed", 0, 255, 255;TrunkGroup 1 = 2, 255, 2, 2, "removed", 0, 255, 255;[ \TrunkGroup ][ PstnPrefix ]FORMAT PstnPrefix_Index = PstnPrefix_DestPrefix, PstnPrefix_TrunkGroupId, PstnPrefix_SourcePrefix, PstnPrefix_SourceAddress, PstnPrefix_ProfileId, PstnPrefix_SrcIPGroupID, PstnPrefix_DestHostPrefix, PstnPrefix_SrcHostPrefix, PstnPrefix_SrcSRDID, PstnPrefix_TrunkId, PstnPrefix_CallSetupRulesSetId;PstnPrefix 0 = "removed", 1, "", "*", 0, -1, "", "", "", -1, -1;PstnPrefix 1 = "removed", 2, "", "*", 0, -1, "", "", "", -1, -1;[ \PstnPrefix ][ ProxyIp ]FORMAT ProxyIp_Index = ProxyIp_IpAddress, ProxyIp_TransportType, ProxyIp_ProxySetId;ProxyIp 0 = "obsbc-euwe.sdg.teams.microsoft.com", 2, 1;ProxyIp 1 = "mainsbc-euwe.sdg.teams.microsoft.com", 2, 2;[ \ProxyIp ][ TxDtmfOption ]FORMAT TxDtmfOption_Index = TxDtmfOption_Type;TxDtmfOption 0 = 4;[ \TxDtmfOption ][ TrunkGroupSettings ]FORMAT TrunkGroupSettings_Index = TrunkGroupSettings_TrunkGroupId, TrunkGroupSettings_ChannelSelectMode, TrunkGroupSettings_RegistrationMode, TrunkGroupSettings_GatewayName, TrunkGroupSettings_ContactUser, TrunkGroupSettings_ServingIPGroup, TrunkGroupSettings_DedicatedConnectionMode, TrunkGroupSettings_MWIInterrogationType, TrunkGroupSettings_TrunkGroupName;TrunkGroupSettings 0 = 1, 0, 0, "onboarding.org", "", 1, 0, 255, "";TrunkGroupSettings 1 = 2, 0, 0, "onboarding.org", "", 1, 0, 255, "";[ \TrunkGroupSettings ][ CallerDisplayInfo ]FORMAT CallerDisplayInfo_Index = CallerDisplayInfo_DisplayString, CallerDisplayInfo_IsCidRestricted, CallerDisplayInfo_Port, CallerDisplayInfo_PortType;CallerDisplayInfo 0 = "Sign In", 0, 1, "FXS";CallerDisplayInfo 1 = "Sign In", 0, 2, "FXS";[ \CallerDisplayInfo ][ Authentication ]FORMAT Authentication_Index = Authentication_UserId, Authentication_UserPassword, Authentication_Port, Authentication_PortType;Authentication 0 = "removed", "removed", 1, "FXS";Authentication 1 = "removed", "removed", 2, "FXS";[ \Authentication ][ ProxySet ]FORMAT ProxySet_Index = ProxySet_EnableProxyKeepAlive, ProxySet_ProxyKeepAliveTime, ProxySet_ProxyLoadBalancingMethod, ProxySet_IsProxyHotSwap, ProxySet_SRD, ProxySet_ClassificationInput, ProxySet_ProxyRedundancyMode, ProxySet_KeepAliveFailureResp, ProxySet_HomingSuccessDetectionRetries;ProxySet 0 = 0, 60, 0, 0, 0, 0, -1, "", 1;ProxySet 1 = 0, 60, 0, 1, 0, 0, -1, "", 1;ProxySet 2 = 0, 60, 0, 1, 0, 0, -1, "", 1;[ \ProxySet ][ IPGroup ]FORMAT IPGroup_Index = IPGroup_Type, IPGroup_Description, IPGroup_ProxySetId, IPGroup_SIPGroupName, IPGroup_ContactUser, IPGroup_EnableSurvivability, IPGroup_ServingIPGroup, IPGroup_SipReRoutingMode, IPGroup_AlwaysUseRouteTable, IPGroup_RoutingMode, IPGroup_SRD, IPGroup_MediaRealm, IPGroup_ClassifyByProxySet, IPGroup_ProfileId, IPGroup_MaxNumOfRegUsers, IPGroup_InboundManSet, IPGroup_OutboundManSet, IPGroup_RegistrationMode, IPGroup_AuthenticationMode, IPGroup_MethodList, IPGroup_EnableSBCClientForking, IPGroup_SourceUriInput, IPGroup_DestUriInput, IPGroup_ContactName;IPGroup 1 = 0, "", 1, "", "", 0, -1, -1, 0, -1, 0, "", 1, 0, -1, -1, -1, 0, 0, "", 0, -1, -1, "";IPGroup 2 = 0, "", 2, "", "", 0, -1, -1, 0, -1, 0, "", 1, 0, -1, -1, -1, 0, 0, "", 0, -1, -1, "";[ \IPGroup ][ CodersGroup0 ]FORMAT CodersGroup0_Index = CodersGroup0_Name, CodersGroup0_pTime, CodersGroup0_rate, CodersGroup0_PayloadType, CodersGroup0_Sce;CodersGroup0 0 = "g711Alaw64k", 20, 0, -1, 0;CodersGroup0 1 = "g711Ulaw64k", 20, 0, -1, 0;[ \CodersGroup0 ] Like
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16 Comments
Henry Torres Rosario
Global Network Voice Manager at Leggett & Platt
1mo
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I'm unable to get a confirmation tone after inputting the *55*<code> nor I can see it on the sign in page.
1Reaction
Steve Petroski
Platform Engineer - Meeting Experience & Telephony
5mo
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Is fax supported?
1Reaction
Ramesh Srinivasan
Senior Consultant - M365 Workplace Products & Solutions
6mo
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I added the following parameters inifileurl, AUPDResetURLOnWebConfig and setdefaultoninifileprocess with the mentioned value. However the device doesn't retart.Not sure what am I missing here. Requesting your assistance here Daniel RichterHere is the version details,Version ID:6.60A.369.002DSP Type:0DSP Software Version:66015DSP Software Name:204IM3Flash Version:199
1Reaction
İsmail Budak
Bircom Telekomünikasyon ve Bilişim Hizmetleri A.Ş. şirketinde Technical Services Team Lead
7mo
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Hello,I am using mp112. The device gets the configuration from http://emea.ipp.sdg.teams.microsoft.com/mac.ini.But when ı start calling,Teams gives 500 error.(SIP ;cause=500 ;text="General Routing Failure")In teams, the device appears to be offline.What are your comments about this problem?note :I haveE1 and Phone System licences and I use teams direct routing on my system.Also, I can add Sip phones without any problems. (Example yealink T30)So I don't think it's a firewall or network issue..
1Reaction
Luke Cox
9mo
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Thanks for this guide, helped me massively
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