SIP TRUNK Configuration With Cisco Router and Call Manager

[Khurram Tariq]

Dear all

i have a project of 200 IP phones, i am using CM 9.1 with Cisco router 2911/v with pvdm3-64 and one E1 card, Now ISP will provide DID range with Sip trunk for inbound and outbound calls.now i need to terminate ISP on cisco router and router will be connected with CM as sip trunk.

Share with me if you have a complete document to figure all this scenario, i did not configured ISP based SIP trunk before thats why i am confused, 

ISP provided us LIve ip with vlan , we will terminate it on local interface of router or E1 interface, i think local giga will be suitable but how we will use DSP resources(pvdm3-64) for the calls ?? please tell me which port will be used and how.

please help me i have to deploy this scenario.

[Anas Abueideh]

Hi,

the PVDM is used when you E1/T1 interface. in your scenario you need to configure SIP trunk between your Voice GW and ISP.

you need to confirm the below settings:

Codec

SIP sever ip address

DTMF

you will create voip dial-peer toward your ISP and another dial-peer toward your call manager.

in this you are deploying CUBE. you need to configure

voice service voip

      allow sip to sip

don't forget to add CUCM and ISP in the trust list under voice service voip

HTH

Anas

don't forget to rate the helpful posts

[Khurram Tariq]

Thanks Anas you have provided a very usefull information now my mind is clear about media termination, please tell would i use NAT for sip ip and my local ip on router?

For dial peer as you say i will create one for isp and other for CM and i think is should create one Dial peer for DIrect Inward Dial ??? is it ??

[Anas Abueideh · Accepted solution]

Hi,

you are more than welcome.

for the incoming called dial-peer you can add incoming called-number . under the dial-peer towards ISP

direct-inward-dial is for pots dial-peer not voip dial-peer.

HTH

Anas

don't forget to rate the helpful posts 

[Khurram Tariq]

tell me  do i need to configure NAT for the isp  and local IP??

oki well i will configure this scenerio in this week and i will let you know if i face any kinda configuration issue.

[Anas Abueideh]

You need to configure NAT for sure. because your internal network is not routable in ISP network

HTH

Anas

don't forget to rate the helpful posts

[Khurram Tariq]

hello 

can you provide me a sample document of Gateway(CUBE) Configuration?

or you can write commands to configure SIP Trunk with ISP ??

[Khurram Tariq]

hello Anas Abu Eideh i have configured CUBE and CUCM as well due to problem in ISP i cannot ping wan ip, 

iam just sharing with you my configuratioon of CUBE please let me know if i am wrong somewhere, check dial peers and SIP configs.

[Anas Abueideh]

Hi,

it seems the configuration should work.

thanks for the rating

Anas

[Khurram Tariq]

hello Anas hope you are good.

i have configured sip trunk on my gateway but i am unable to make calls

here i have attached my sh run and debug sip message and debug voice ccapi all

kindly help me as soon as possible