7975G different SIP servers/lines

[multialarm]

Hi!

I would like to ask how do I know the different lines in different SIP servers to register?

/tftp_root/SEP010203040506.cnf.xml :

---

<callManagerGroup>

<name>Default</name>

<tftpDefault>true</tftpDefault>

<members>

<member  priority="0">

<callManager>

<name>10.0.0.1</name>

<description>10.0.0.1</description>

<ports>

<ethernetPhonePort>2000</ethernetPhonePort>

<sipPort>5060</sipPort>

<securedSipPort>5061</securedSipPort>

<mgcpPorts>

<listen>2427</listen>

<keepAlive>2428</keepAlive>

</mgcpPorts>

</ports>

<processNodeName>10.0.0.1</processNodeName>

</callManager>

</member>

</members>

</callManagerGroup>

.

.

.

<sipProxies>

<backupProxy>USECALLMANAGER</backupProxy>

<backupProxyPort>5060</backupProxyPort>

<emergencyProxy>USECALLMANAGER</emergencyProxy>

<emergencyProxyPort>5060</emergencyProxyPort>

<outboundProxy>USECALLMANAGER</outboundProxy>

<outboundProxyPort>5060</outboundProxyPort>

<registerWithProxy>true</registerWithProxy>

</sipProxies>

In the sipLines session only "USECALLMANAGER" given IP address is not accepted:

<sipLines>

<line  button="1" lineIndex="1">

<featureID>9</featureID>

<featureLabel>Office 10 (1237)</featureLabel>

<proxy>USECALLMANAGER</proxy>

<port>5060</port>

...

<line  button="2" lineIndex="2">

<featureID>9</featureID>

<featureLabel>Another Office 14</featureLabel>

<proxy>USECALLMANAGER</proxy> <= but this is another SIP (asterisk) server with another IP

<port>5060</port>

Thank's!

[paolo bevilacqua]

Cisco does not support or document use of the phones with third party PBX. You can try that on sites like voip-info.org

[multialarm]

Thanks for your response!

I would rather ask, why can not I specify a separate SIPproxy IP address for the SIPline's?

What happens when the telephone (sip)lines must be registered to another different CallManager's?

A cheaper device (like the Linksys SPAxxx) is not a problem. Each Siplines (Ext1..4) can i insert separate SIP proxy IP addresses.

Thank you!

[paolo bevilacqua]

As above, Cisco makes these telephone for CM and CME, not for any other use.

[multialarm]

Hi Paolo,

OK, let's say I am using Cisco CM or CME. I have two Cisco CM running at two different locations. Am I able to use both Cisco CM at once (so the phone is able to register to both whether I am using SCCP or SIP firmware) or the only way to have a remote extension from the second CM is to use a trunk between the two CM and forward my calls through the trunk?

Thanks,

Frank

[paolo bevilacqua]

First of all, normally most Cisco phones uses the SCCP protocol that is superior to SIP in terms of features and ease of administration. This protcol always register to a single system.

Then you would have the two CM systems connected by a so called inter-cluster trunk, that would avoid the complication an unpracticality of having a phone registerd to two systems.