Support / Voice

Configuration guides for the equipment that runs your voice traffic.

VoiceTel works with the SIP devices, firewalls, and platforms you already operate. These guides cover the small handful of settings that affect call quality, registration stability, and audio path reliability.

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Categories

  • Routers and firewalls

    SIP ALG disable instructions and NAT/conntrack guidance for the consumer and business routers customers run most often.

  • Hardware IP phones

    Per-vendor account configuration for Yealink, Poly/Polycom, Cisco MPP, Grandstream, and Snom desk phones.

  • Softphones

    Account setup for Bria, Zoiper, Linphone, MicroSIP, and other SIP softphones across desktop and mobile.

  • Session Border Controllers

    Trunk-side interop for AudioCodes, Cisco CUBE, FreeSWITCH, and Asterisk SBC deployments.

  • Open-source PBX

    SIP trunk templates for FreePBX, FusionPBX, 3CX, and raw Asterisk configurations.

  • Porting numbers

    What we need from you, what happens after submission, FOC timing, common rejection reasons, and port-out protection.

  • Compliance and abuse prevention

    FCC, TCPA, carrier, and STIR/SHAKEN requirements for outbound voice traffic — consent, caller ID, DNC, prohibited categories, and enforcement.