Call Blocking and Dialing Rules

Open TelefonX › Settings … › Rules.

Call Blocking

Reject Anonymous Calls rejects calls without a caller identifier.

New Block

1. Enter a Phone Number or SIP Address.
2. Click Block.

Calls from this destination are rejected on all lines.

Blocked Numbers

This section appears once at least one block exists. Remove saved blocks here. A number can also be blocked or unblocked from the context menu of a contact or recent call.

Outgoing dialing rules

Outgoing dialing rules are a Pro feature. A rule assigns numbers beginning with a specific prefix to a line.

1. Enter a prefix under Number Starts With, such as 0049.
2. Choose a line under Use Line.
3. Click Add Rule.

If multiple rules match, the longest matching prefix wins. TelefonX considers only connected and unlocked lines. If the line stored in a rule is unavailable, TelefonX falls back to the current dialer selection or an available default line.

Example: 0049 uses “Office”, while 004940 uses “Hamburg”. The more specific 004940 rule handles 004940123456.