[cisco-voip] use of "IP Phone Service" while connected via MRA

2017-04-28 Thread Michael Hamann
Hello Folks, we just start to switch our home office phones from the old anyconnect / phone VPN way to mra... The MRA part works very well, but we are asking us if it is possible to use IP Phone Service (XML Services) ? I just read that extension mobility is not supported yet so I fear that IP

[cisco-voip] best way to route call between 2 CUCMs

2015-02-09 Thread Michael Hamann
Hello, we support a company with severel sub organisations. We have a large CUCM cluster (Ver 9.1), which provided telephony for most of the users. Now one unit is building up a seperate smal CUCM (Ver 10.x). Both units networks are seperated through a firewall, no overlapping subnets. The

[cisco-voip] recommended configuration for fax (MGCP PSTN Gateway, SCCP VG224)

2014-03-03 Thread Michael Hamann
Hello, we are migrating a large Siemens PBX to a CUCM (9.1) environment with several 2921 MGCP (E1) PSTN gateways. We start now with the first branch offices where we plan to have a 2901 Voice router (MGCP) with SRST configured. SRST works as expected but we are not sure on how to provide analog

Re: [cisco-voip] One-way audio issues with Cisco SIP phones

2014-01-29 Thread Michael Hamann
in the SDP when the call is initially placed vs. hold/resume. On Jan 15, 2014, at 2:11 AM, Michael Hamann m...@mhamann.net wrote: Hello, we have a strange issue with one-way-audio under certain circumstances with Cisco SIP phones (8961,9951,9971) registered to a CUCM (9.1.1.2-5