Conf File Templates: Reusing Carrier Configuration

If you run more than one carrier or more than a handful of phones, you have probably copied the same block of codec and account settings into each entry. That works until you need to change one line everywhere, and now you are editing ten records and hoping you did not miss one. Conf File Templates fix that.

A template is a named block of configuration parameters that multiple carrier and phone entries can share. Define it once, point your entries at it, and a change to the template flows out to everything that uses it.

What a template holds

Templates are meant for the settings that are the same across entries, like which codecs you allow. A common example is the codec lines: disallow=all to clear the list, then allow=ulaw or allow=gsm to pick what you actually use. Put that pair in a template and every carrier on that template speaks the same Codec without you retyping it.

Each template has three things worth knowing. The Template ID is the short handle, at least 2 and at most 15 characters with no spaces, used to reference the template across the system. The Template Name is a human-readable label. The Template Contents field is the actual block of parameters that gets injected into the generated conf file.

Template versus Account Entry

On a carrier record you have two ways to supply settings, and they are an either-or. If you select a Template ID, the carrier pulls its shared parameters from that template. If you leave the Template ID blank, you fill in the Account Entry field directly with that carrier's specific settings. You use the Account Entry when the settings are one-off; you use a template when several entries share the same block.

A clean pattern is to keep shared codec and behavior in a template, and keep the truly per-carrier bits, the credentials and host, on the individual carrier record. For a refresher on what lives in the per-carrier block, see the carrier Account Entry breakdown.

flowchart TD
  A[Carrier record] --> B{Template ID set?}
  B -->|Yes| C[Pull shared block from template]
  B -->|No| D[Use Account Entry field]
  C --> E[Merge with per-entry secret]
  D --> E
  E --> F[Generate Asterisk conf file]

When templates earn their keep

Templates pay off the moment you have repetition. A few situations where they save real time:

• Running several carriers from the same provider that all need the same codec and DTMF settings.
• A fleet of softphones that should all share one NAT traversal and codec policy.
• Standardizing a codec change, say moving from ulaw to gsm to save bandwidth, in one place instead of ten.

The flip side: if every carrier genuinely needs different settings, a template adds a layer of indirection for no benefit. Reach for one only when you have actual shared configuration to factor out.

Admin scoping

Each template has an Admin User Group. The default, --ALL--, lets any admin user view the record. If you run separate teams or clients on one system, you can scope a template to a User group so only that group sees it. This keeps the template list tidy when several teams share an admin login, and it matches how carrier and phone records are scoped too.

Templates sit alongside server-level carrier assignment in how you organize a multi-carrier setup. For the bigger picture across the whole carrier layer, the carrier integration guide ties it together, and if you are still choosing a provider, this carrier-selection walkthrough is a good companion read.

Wrapping up

Conf File Templates are a small feature that prevents a real maintenance headache: shared settings in one place, per-entry secrets kept out, and one edit that updates everything. Use them when you have repetition, skip them when you do not.

VICIfast hands you a managed VICIdial box, provisioned in under 40 seconds, with the admin screens ready so you can set up templates and carriers without touching a server. View pricing to get going.