SIP Service

Fax Numbers

• Does T38Fax.com support inbound Caller ID?

• Does T38Fax.com support outbound Caller ID?

• Can I keep my current phone number?

• Can I send an anonymous Caller ID?

Definitions

• ECM

• SIP

• T.38

• ATA

• T.30

Troubleshooting

• Some Inbound Calls Not Ringing Through After Port-In

• Collecting Packet Captures

• Problems Making a Call (Outbound Calling)

• How do I contact Support?

FAQ

• Can I place voice calls using T38Fax?

• Can I use a non-fax modem with T38Fax?

• Are international calls supported?

• Using T.38 versus G.711 Pass-through

• Does T38Fax.com store my Faxes?

• How do I contact Support?

See all 14 articles

Getting Started

• Number Forwarding

• T38Fax Quick Start Guide

• Fax Servers

• Can I keep my current phone number?

• What are your recommended ATAs / analog adapters?

• Should our firewall use SIP ALG?

See all 17 articles