MGCP or H323??

[techguy]

Hello,

I have 3 sites connected to one main site (all using cme).Main site has 12 FXO Ports. Now i want to connect that main site with our HQ CUCM. Which protocol do i need to use? and why any idea???

[ashok_boin]

Hello,

You have not mentioned any details with regards to main site. Are you connecting another CME from main site or a Voice GW?

If I presume a Voice GW at main site, you can utilize MGCP if you would like to have complete control from CUCM (HQ).

Regrds...

-Ashok.

[techguy]

Main site is running CME itself. sO it has already one h323 interface. I dont think so that i can add two h323 interaces in one router one for local phones and other for CUCM ?

[paolo bevilacqua · Accepted solution]

It is not done adding interfaces, but dial-peers.

It is a normal configuration.

You should not ever use MGCP.

[techguy]

Can you please give me a clue or example of what type of Dial-peer we require without binding the virtual interface via using h323???

[James Hawkins]

Something like this should work:

voice class codec 1

codec preference 1 g711ulaw

codec preference 2 g711alaw

codec preference 3 g729r8

codec preference 4 g729br8

!

dial-peer voice 101 voip

description CallManager Publisher

preference 2

destination-pattern 1...

voice-class codec 1

session target ipv4:10.1.1.1

dtmf-relay h245-alphanumeric

!

dial-peer voice 102 voip

description CallManager Subscriber

preference 1

destination-pattern 1...

voice-class codec 1

session target ipv4:10.1.1.2

dtmf-relay h245-alphanumeric

!

It assmumes that you have two CUCM servers - a Publisher with IP address 10.1.1.1, a Subscriber 10.1.1.2 - and that the CallManager extensions are four digits starting with a 1.

[techguy]

thnx v much for your info.

I just googled and came to know that in order to h323 protocol on gateway, we dont need the h323-gateway voip interface command to register h323 gateways to Call Manager, only needed the h323-gateway source address command.

But i am gettting below error whenever i put h323-gateway voip bind srcaddr X.X.X.X command under loopback interface.

Bind IP Address configured. Please remove before reconfiguring

[vandana]

Would you please upload the " sh run" from the GW.

[paolo bevilacqua]

The command is not need unless you have multiple interfaces.

[Hythim Ali El Hadad]

answered in the other post

[techguy]

ip dhcp excluded-address 10.5.83.100 10.5.83.254

ip dhcp excluded-address 10.5.81.0 10.5.81.254

!

ip dhcp pool VOICE

network 10.5.82.0 255.255.254.0

default-router 10.5.83.254

option 150 ip 10.5.83.254

!

ip dhcp pool DATA

network 10.5.80.0 255.255.254.0

default-router 10.5.81.254

dns-server 212.76.68.200 212.76.68.201

!

interface GigabitEthernet0/0.20

encapsulation dot1Q 20

ip address 10.5.83.254 255.255.254.0

ip nbar protocol-discovery

ip flow ingress

ip flow egress

h323-gateway voip interface

h323-gateway voip bind srcaddr 10.5.83.254

!

interface Loopback10 ( here i want to put h323 command in order to get connected with cucm)

ip address 172.16.250.150 255.255.255.252

!

telephony-service

no auto-reg-ephone

max-ephones 64

max-dn 65

ip source-address 10.5.83.254 port 2000

max-conferences 8 gain -6

transfer-system full-consult

secondary-dialtone 9

!

[Hythim Ali El Hadad]

interface GigabitEthernet0/0.20

no h323-gateway voip bind srcaddr 10.5.83.254

interface Loopback10

h323-gateway voip bind srcaddr 172.16.250.150

that's only