Understanding using router to simulate PSTN

[eigrpy]

Hi Anyone can send a link to explain how to use router to simulate PSTN? I got some configuration on router to simulate PSTN. but it is difficult to understand them. Thank you

[Venkatesh Perumal]

Please be more specific.

http://www.networkworld.com/article/2346450/cisco-subnet/home-lab--pstn-simulation-.html

[eigrpy]

Thanks for your reply. The below is some of config of PSTN in router and I only know function of some of config. Why do they act as PSTN? Can we think this simulated PSTN is configuration like for an analog phone?

I want to know what are specific required components for PSTN function configuration and their functions.

voice service voip

 no ip address trusted authenticate

 allow-connections h323 to h323

  bind control source-interface FastEthernet0/0.192

  bind media source-interface FastEthernet0/0.192

  registrar server

!

voice register global

 mode cme

 source-address 192.168.1.254 port 5060

 timeouts interdigit 5

 max-dn 9

 max-pool 9

 load 9951 sip9951.9-1-1SR1

 time-format 24

 tftp-path flash:

 create profile sync 0002518403107605

 ntp-server 157.26.1.250 mode unicast

 camera

 video

!

voice register dn  3

 number 911

!

voice register dn  5

 number 999

!

voice register pool  1

 id mac 3CCE.7359.3308

 type 9951

 number 1 dn 1

 number 2 dn 2

!

[Nadeem Ahmed]

no this is config is for your SIP endpoints,PSTN is nothing connecting you to outside world.If you putting in just for lab purpose you can SIP/PRI/FXO line configure between or bridging two lines

Cisco Router/VGW are capable doing  inter-operability if you have some FXS line or SCCP or SIP endpoint etc and proper destined/voice routing it suppose to reach to your number which you have configure here.

[Deepak Rawat]

https://learningnetwork.cisco.com/thread/10949

Regards

Deepak