6/18/2023 0 Comments Zoiper call alphanumerical![]() ![]() If you are a heavy user of fax, or if fax is a critical part of your business, then we recommend our SimpleFAX Secure FAX ATA. If you can live with this level of reliability, then, by all means, try it out. You may have to re-transmit your fax once out of every ten times. We have extensive experience running faxes over the Internet and can say with confidence that if you are a light duty user of fax, meaning 1-2 faxes per week, an ATA might be a good solution for you. With VoIP calling (and faxes riding on that connection), we can't guarantee that fax transmissions will appease the finicky fax modems contained in most fax machines. Traditional fax machines have fax modems which rely on data being delivered to them predictably without jitter or latency. While it is possible to use the SIP.US service for faxing by placing an ATA (analog telephone adapter) behind a standard fax machine, keep in mind that calls over the public Internet are not designed to deliver faxes reliably 100% of the time. Learn how to Setup SIP Trunk for FreePBX, Cisco SIP Trunk, Asterisk and others in our Knowledge Base. We recommend the Cisco SPA-2102 for a single port ATA interface and the Grandstream GXW400X series multi-port ATAs for interfacing with analog systems that require more than one line. In addition, we fully support analog telephone adapters (ATAs) which can interface to legacy analog PBX's and key systems. Examples of these types of gateways are the Digium G100 and G200 gateways. For those systems that do not support SIP trunking, we support SIP-T1 gateway devices where it's SIP-in and T1-out to the PBX. These SIP-capable PBX vendors include Toshiba, Panasonic, NEC, Avaya, Cisco, Nortel, Intertel, and others. ![]() Many traditional PBX manufacturers also support SIP trunking with their latest software releases. This includes popular VoIP IP-PBX's like Asterisk, FreePBX®, Trixbox, Switchvox, PBX in a Flash, Elastix, Bluebox, FusionPBX, 3CX, sipXecs, Go Auto Dial, Vicidial, Thirdlane, and more. We support any PBX system that is SIP-enabled. We'll check it out for you and let you know for sure. You can also contact us with the particular make and model of the PBX. Look for words like SIP or SIP-enabled IP calling. You'll want to look for a section on 'configuring a SIP Trunk' or you might find it in the specifications section, typically located at the end of the manual. If your PBX has a data jack and you are still unsure if it's SIP-capable, you can check the user manual. ATA manufacturers include Cisco/Linksys, ObiHai, Grandstream, and others. ATAs come in a variety of sizes, from single port all the way up to 24 analog ports. The ATA will front-end your legacy PBX and allow you to use SIP.US trunks. ![]() However, in those cases, you can still use what is called an ATA (analog telephone adapter) that will convert SIP over to analog. Older PBX or key systems just have analog lines to connect to the PSTN, so if your system does not have a data jack or Ethernet jack, it is probably not SIP-capable. First, if your PBX has a data jack or Ethernet jack on the back, there is a good chance that it is SIP-capable. There are several ways to check and see if your PBX is SIP-enabled. These days, most new PBX systems are SIP-capable. ![]()
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