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Example of ECOTEL VoIP trunk gateway group settings.

Outbound caller ID

As just the last digit of the trunk number block is changing, you can select just the last digit (in brackets) and put it into the variable $1.

As the provider wants the signalling number in the format (country-code)(city-code)(number), you have to enter this number into the next line (here: 0891234567$1, where the $1 represents the changing part).

For external calls, we will present e.g. 08912345678 to the provider, and he will take care about the correct representation to the called party.

Asserted Identity

These fields are used specially for external forwardings. For ECOTEL VoIP Trunk, you can leave these fields empty.

Inbound DIDs

For incoming calls, you can use the regular expression, generated by the setup assistant. In your case you would have to adjust the city-code and the pilot-number, according to your line-settings.

^ ^(?:(?:(?:0049|\+49|49|0)?89)?12345)?(.*)

This

expression

cuts

all

possibly

available

country-

and

city-codes

and

the

pilot-number

from

the

incoming

number

and

only

the

extension

is

remaining

(here:

678).

This

will

be

forwarded

to

the

Inbound

Routes.

Inbound caller ID

For incoming calls, we will the external number of the caller "as-is" to the phone (e.g. 089987654321). During the call-setup the additional 0 will be automatically removed.

Gateways

This field will be empty when you create this Gateway group. It will show later the assigned SIP gateways.