Description This article describes the steps to configure Ring Simultaneously on the same extension range of Grandstream IP PBX UCM63XX and Analog PBX. Scenario I have an extension range (200-300) in Panasonic Analog PBX and Grandstream PBX UCM6301. They connect with a PRI Gateway GXW4501 through a SIP Peer Trunk and E1 cable. When someone … Read more
Description No ‘ringback tone’ issue on outbound calls occurs when the PBX or UCM receives 183 Session Progress (with SDP) first and then 180 Ringing later from the SIP Service Provider (ITSP). It would be a 183 Session Progress message to play the ‘Early Media’ on the caller’s phone. Also, missing SDP in 183 Session … Read more
Issue Grandstream IP PBX UCM does not call the invitees with external numbers, but it works with extensions during the scheduled meeting. How to UCM calls out using the Meeting Room Number during the scheduled meeting. Make sure that you enter the _x. or _meeting_room_number under Outbound Routes > Source Caller ID Pattern
Scenario/Test Steps 1. ISP (TATA) VoIP trunk has 100 DIDs and DODs. Configure the SIP Register trunk in UCM A. The SIP Trunk number (pilot number) is 68010200. 2. UCM A and UCM B are connected via Peer Trunk. Keep Trunk CID, Keep Original CID, and Caller ID disabled in Peer Trunks. 3. UCM B has … Read more
Description This article explains the P-Preferred-Identity (PPI) Header in UCM’s INVITE message when UCM forwards the call from the extension to an external or mobile number. Test Steps Packet capture Outbound CID Priority TO vs Request Headers The Request-Line and To headers show the DID used by the PBX, eg. 8887771234 is the DID, it is … Read more
Description Call forward makes the remote working solutions more efficient and ensures continuity of business operation. This article describes the settings required to allow the forwarding of the original Caller ID of external numbers in Grandstream IP PBX UCM. 1. Make sure that the UCM has the latest firmware version 2. Make sure the following settings … Read more
Description This article describes common Analog or PSTN trunk issues that happen in Grandstream PBX UCM63XX/62XX/6510. A list of suggestions is stated to deal with different scenarios in the customer’s setup. Issue 1: Noise or Echo Issue 2: Caller ID not showing or Undetected 0000 Issue 3: FXO port status is not reflected correctly in … Read more
Scenario I have two UCM62XXs at two locations with different extension number ranges:Location A: UCM6204 (extension range 1000) Location B: UCM6204 (extension range 2000). There is a VoIP Trunk connected in UCM A. Is it possible to make outbound calls from UCM B through UCM A’s VoIP Trunk and vice versa? How-to Inbound call The Service Provider has given the … Read more
Description This article describes the sample of the Outbound Routes Dial Plan for Australia in Grandstream UCM. Outbound Route Dial Plan Pattern Local _XXXXXXXX (this allows you to dial a local number like 9411 0000) Mobile _04XXXXXXXX (this allows you to dial a mobile number like 0413 431 000) National _[2-9]XXXXXXXXX (this allows you to … Read more
Description In some countries, the providers of SIP trunks deliver a private IP for the routing of calls on their SIP trunks, in these cases, it is necessary to manage static routes to redirect outgoing calls on their private network or interface. In dual-mode, the UCM6XXX is able to handle a different network per individual port and a … Read more