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<div style="font-size: 11pt;font-family: Calibri;"><span
style="font-family: Calibri;">Hi All<br><br>Due to time constraints I'm
posting here for the hope for a quick response.<br><br>I'm currently
trying to setup a Trunk to our upstream Carrier.<br>The issues we are
facing is that inbound calls from them are working 100%.<br>Outbound
calls to them are returned with a 500 error.<br><br>The only immediate
differences we could pickup was the SIP versions.<br><br>They have a
Huawei MSOFTX3000 running SIP version 1.3.0.23.<br>I'm running
freeSWITCH 1.5.1b+git~20130414T025052Z~969eae39d9<br><br>Is there any
possibility someone could help me figure out what compatibility issues
between the SIP versions could cause, especially for out bound calls to
the Carrier?<br><br><br>Thank you very much<br><br><br>Kind Regards<br>Deon
Vermeulen<br></span></div>
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