Cisco IOS SIP Gateways

[arani]

Hi all.

A customer asks me how to integrate SIP protocol on IOS gateways to connect his IP communication infrastructure to VoIP service providers and carrirer.

He has already a system with callmanager and IOS Voice Gateways but he whant to add SIP and reduce traditional PSTN lines, using the Internet.

How i can implement it on Cisco IOS Voice Gateways?

Regards.

[Brandon Buffin · Accepted solution]

Here's an example configuration using CME, but the concepts are the same. The other piece would be to have the gateway/route group/route list/route pattern configuration in Callmanager to point to the H.323 gateway.

http://www.cisco.com/en/US/products/sw/voicesw/ps4625/products_configuration_example09186a00808f9666.shtml

Hope this helps. If so, please rate the post.

Brandon

[paolo bevilacqua]

In addition to the good advice by Brandon, remember that if the call has to go through a router, you will need an "IP-To-IP GW" image, that in 12.4, as the filename ending with _ivs, plus you will need to "allow-connections" for the type of call like "h323 to sip" and "sip to h323" under "voice service voip".

Hope this helps, please ate post if it does!

[arani]

Hi.

After a couple o test i have obtained this situation.

I can make outbound calls from Communication Manager to the PSTN via SIP Provider using a Cisco Voice Gateway.

I cannot receive inbound calls because i cannot register the sip-ua beacause i'm not using pots dialpeers but only voip dialpeers and of course i cannot use authentication them.

Ideas?

Regards.

[paolo bevilacqua]

Hi, configure credentials under sip-ua to authenticate registration to ITSP.

[arani]

Hi

credentials are already configured.

sip-ua

authentication username 0543199xxxx password xxxxxxxxxxx

no remote-party-id

retry invite 2

retry register 10

retry options 1

timers connect 100

registrar dns:voip.eutelia.it expires 3600

sip-server dns:voip.eutelia.it

MEDIA-VG#sh sip-ua register status

Line peer expires(sec) registered

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

Without specifying authentication on pots dial-peer, nothing registers.

[paolo bevilacqua]

You're right. Please configure a dummy DP of any kind for the purpose. Destination-pattern must the number you're registering.

[ayo.monehin]

Guys,

This is some useful info.

p.bevilacqua , do you mind elaborating a bit further?

Cheers,

Ayo

[paolo bevilacqua]

A pots DP with "sip-register" will try to register that number. Same will do an ephone-dn.

[ayo.monehin]

Thanks for the prompt reply.

Could you possible include some commands for both the pots DP & the ephone-dn.

Cheers for that.

[Sascha Monteiro]

I tried with ucm6be -> CUBE -> SIP PROVIDER,

and I had to set this command;

sip-ua

credentials username xxx password realm mysip.provider.net