Provider threw settings SIP telephony,said that they have authorization comes without a login/password, IP address.
don't quite understand how to configure a SIP trunk? everywhere on the Internet examples of how to configure a login password, so any difficulties.
Opt-in settings for the SIP trunk.
Dedicated network: 172.26.**.152/30 (172.26.**.154 - your equipment
172.26.**.153 - default gateway)
Server IP address: 89.232.**.56
Port: 5060 UDP
The voice will go c 89.232.**.148
Both the above ip addresses should be routed through 172.26.**.153
Codec: g711a 20ms
DTMF: inband better (but it is possible and rfc2833)
The range of numbering:
84322***88 - 84322***99 (12 rooms, 4 channels)