How to distribute multiple SIP trunk lines in Elastix?

Question

Asterisk

Friends, the provider gives a SIP trunk with 5 lines. Elastix is ​​installed in the office, the trunk itself is configured, incoming and outgoing routing, sip clients (the settings are minimal). Is it necessary to make sure that two of the lines are assigned strictly to certain internal numbers, the rest are distributed among the rest? How to decide?

Answer 1

you decide:
1 number for 5 lines - no way
or 5 numbers for 1 line - make 3 outgoing routes

Answer 2

Lines cannot be demarcated. Each trunk is engaged as needed.
You can ask the operator instead of 1 trunk -3 trunks on 1-2 lines.
Now no one pays for the lines, ask for three trunks on the 3rd line and do not suffer.