voice gateway, analog phone, cisco call manager

[sarahr202]

Hi every body.

analog phone---Voice-gateway----PSTN

I know it is a  ridiculous set up but I am trying to get across some questions.

We don't need Ciso call manger express  on  voice gateway in above set up. All we have to do just configure  analog interface on voice gateway  so analog phones can dial across pstn to any phone in pstn.

1)Is my understanding correct?

    ===========================================

analog phones1----Voice gateway--------PSTN-

                                              |

                                              |

                                           CME

                                              |

                                          ip phone2

Above we have configured analog interface on voice gateway; voice gateway is not running any CME;  Also assume gateway is configured to  provides dial tone upon sensing off -hook condition on its analog interface  without requiring any message from CME.

  Do we need to add analog phone under CME just like the we add ip phone under CME?

thanks and have a great weekend.

[Adrian Saavedra · Accepted solution]

Hello,

You don't need to run CME. As long as your router is running an IOS with voice support, you can connect analog phones to FXS cards and control them using H.323.

You configure a POTS dialpeer to send calls to the analog phone connected to an FXS port. For PSTN access you need typically FXO or T1/E1 cards and then configure POTS dialpeers to access PSTN phones.

Hope to help, please remember to rate the post if it does.

Regards!

- Adrian.

[sarahr202]

HI Adrian

analog phones1----Voice gateway--------PSTN-

                                              |

                                              CME          

                                              |

                                            ip phone2

Do we need to add analog phone1 in CME the way we add ipphone2 in CME ?

Thanks

[Adrian Saavedra · Accepted solution]

Hello Sarah,

Is not strictly necessary to add/configure the analog phone in CME. You can have IP phones controlled by CME using SCCP/SIP protocol and analog phones connected to FXS ports with H.323 protocol. In this scenario you only need a POTS dialpeer to let CME phones call the analog phone. Calls from analog phone to CME phones will use dial peers that are automatically generated by ephone-dns (those dial peers do not appear in the running-config).

Now, you can configure FXS ports to be controlled by CME using SCCP protocol (http://www.cisco.com/en/US/docs/ios/voice/fxs/configuration/guide/fxssccpsplmft.html). Once you register the FXS ports to CME, analog phones are added just like another CME IP phone and assigned a directory number using ephone and ephone-dn commands. The show stcapp device summary command displays a summary of endpoints associated with the STC application, their states, types and call control device.

Hope to help, please remember to rate the post if it does.

Regards!

- Adrian.

[sarahr202]

HI Adrian

analog phone1---Voice gateway---ip network-----CME-------rest of ip network

                                                                                  |

                                                                                  |

                                                                                ip phone

Please consider the voice gateway and analog phone1.

Can I configure dial peer at voice gateway and allow CME to control FS port and add analog phone1 under CME?

Or since we configure dial peer at voice gateway therfore we must add analog phone at voice gateway ?

thanks and have a great weekend.

[acampbell · Accepted solution]

Sarah,

You will need something along these lines:-

Please substitute with your own DNs and interface numbers etc.

Lets say the Analogue phone is to extn 1234

The VG will need 2 dial peers

1 pots for the local FXS port

1 VOIP to reach the CME say extns 7xxx

The CME will need a VOIP peer to call to the VG FXS

ON THE VG
*********
!
!
voice class h323 1
h225 timeout tcp establish 3
!
interface fas 0/0/0
desc ***VOICE INTERFACE***
ip address 201.201.201.201 255.255.255.0
no ip red
h323-gateway voip bind srcaddr 201.201.201.201
!
!
voice-port 0/1/0
desc *** FXS ANALOGUE PHONE EXTN 1234 ***
cptone GB
!
!
dial-peer voice 1234 pots
desc *** LOCAL DPEER FOR FXS PORT ***
destination-pattern 1234
port 0/0/0
!
!
dial-peer voice 7000 voip
desc *** REMOTE EXTNS DPEER TO CME ***
destination-pattern 7...
voice-class h323 1
session target ipv4:10.10.10.10
dtmf-relay h245-alphanumeric
codec g711ulaw
no vad
!

ON THE CME
**********

!
!
voice class h323 1
h225 timeout tcp establish 3
!
interface fas 0/0/0
desc ***VOICE INTERFACE***
ip address 10.10.10.10 255.255.255.0
no ip red
h323-gateway voip bind srcaddr 10.10.10.10
!
!
dial-peer voice 1000 voip
desc *** REMOTE EXTNS DPEER TO CME ***
destination-pattern 1...
voice-class h323 1
session target ipv4:201.201.201.201
dtmf-relay h245-alphanumeric
codec g711ulaw
no vad
!

Hope this helps

Regards,
Alex.
Please rate useful posts.

[moussa.malqui1]

Hi All,

I'm looking for analog phone in Cisco i didn't find it? so cisco hasn't Analog phones?

Thanks,

Regards,

MM

[acampbell]

MM,

Analogue phones connrct to fxs type ports on CUCM v/gwy routers or FXS ports on your CUCME.
Also on ATAs configured on your systems.

You would need to explain which system you wnt to install your phones on to.

Regards
Alex