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Knowledge base
Explore How-To's and learn best practices from our knowledge base.
SIP Service
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Getting Started
17
How do I sign up?
Porting in local numbers (LNP Port-In)
Usernames and passwords explained
Why we recommend SIP port 5080 instead of 5060
Recommended Firewall Settings
See all 17 articles
FAQ
14
T38Fax IP Addresses and Port Usage
Typical Use Case Scenarios
How does T.38 Work?
What is ECM and why do I need it?
Is my Self-Care Password the same as my SIP Password?
See all 14 articles
Troubleshooting
5
How do I contact Support?
Problems Making a Call (Outbound Calling)
Collecting Packet Captures
Cause Codes
Some Inbound Calls Not Ringing Through After Port-In
Definitions
5
T.30
ATA
T.38
SIP
ECM
Fax Numbers
4
Can I send an anonymous Caller ID?
Can I keep my current phone number?
Does T38Fax.com support outbound Caller ID?
Does T38Fax.com support inbound Caller ID?
Compatibility List
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Softswitches & IP-PBXes
15
Asterisk
Asterisk Design Guide
Digium Switchvox
FreePBX
FreePBX - chan_sip - IP Auth
See all 15 articles
Fax Servers & Appliances
14
Biscom FAXCOM Server
Dialogic Brooktrout Fax Service Provider (FSP)
Equisys Zetafax
Esker Fax
Extracomm ExtraFax
See all 14 articles
Gateways & ATAs
32
Cisco ATA191-MPP - Cisco ATA 191 Multiplatform
Cisco ATA192-MPP - Cisco ATA 192 Multiplatform
Cisco: SPA112 2-Port Phone Adapter
Cisco: SPA122 2-Port Phone Adapter
Obihai: OBi200
See all 32 articles
T.38 SIP Stacks/Drivers & Miscellaneous
2
Dialogic SR140
Fax Voip T38 Fax & Voice
T.38-Native Fax Machines
2
Lexmark MX611de
Toshiba Fax Machines
User Portal
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Reporting
1
Where can I find my call records
Billing
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Billing
5
Do you mail me a monthly paper invoice?
How do I setup automatic payments with my credit card?
How do I add/edit my credit card information?
When will my invoice be available?
What methods of payment do you accept?
Manufacturers
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Obihai
0
